parent
d493c0abe8
commit
682598daac
@ -0,0 +1,450 @@
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#!/bin/bash
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# There is no GPIO0 or GPIO1
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# Zero padding means p_list[2] = GPIO2
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p_list=("0" "0" "2" "3" "4" "5" "6" "7" "8" "9" "10" "11" "12" "13" "14" "15" "16" "17" "18" "19" "20" "21" "22" "23" "24" "25" "26" "27")
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p_locs=(0 0 3 5 7 29 31 26 24 21 19 23 32 33 8 10 36 11 12 35 38 40 15 16 18 22 37 13)
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p_cache=(0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0) # Enabled/not
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p_dir=(0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0) # In/out
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p_stat=(0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0) # Powered/unpowered
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root=/sys/class/gpio
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p_id=0 # Pin ID
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p_en=0 # Pin enabled
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p_in=0 # Pin dir (in=1/out=0)
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messages=() # max 4 lines
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latestdatest=""
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## Colors
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c_pre="\e[38;5;"
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c_default="${c_pre}15m"
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c_disabled="${c_pre}244m"
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c_dim="${c_pre}33m"
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c_off="${c_pre}202m"
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c_on="${c_pre}118m"
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c_in="${c_pre}45m"
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c_pink="${c_pre}207m"
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c_purple="${c_pre}141m"
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c_warn="${c_pre}11m"
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c_ok="${c_pre}10m"
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c_err="${c_pre}9m"
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rst="\e[0m"
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##
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trap ctrlc INT
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function ctrlc() {
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tput cub 99
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echo "`tput setaf 1`ctrl+c detected - exiting`tput sgr0`"
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tput cnorm
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exit 1
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}
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function log() {
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upthedate
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local words="[ ${latestdatest} ] ${1}"
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local sev="$2"
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local logs=${#messages[@]}
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local maxlen=78
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local logcolor="${c_default}"
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case $sev in
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err) logcolor="${c_err}";;
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warn) logcolor="${c_warn}";;
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ok) logcolor="${c_ok}";;
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esac
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if [ $logs -ge 4 ]; then # Prune first message
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# A loop would be smarter, but this is quicker
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messages[0]=${messages[1]}
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messages[1]=${messages[2]}
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messages[2]=${messages[3]}
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messages[3]="${logcolor}${words:0:$maxlen}${rst}"
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else
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messages[$logs]="${logcolor}${words:0:$maxlen}${rst}"
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fi
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}
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function upthedate(){
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latestdatest=`date "+%_I:%M:%S %P"`
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}
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function showlogs() {
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local line=23
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for i in `seq ${#messages[@]} -1 0`; do
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tput cup $line 2
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tput el
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[ -z "${messages[$i]}" ] || echo -en "${messages[$i]}"
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let line=line-1
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done
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}
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function hidelogs() {
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local line=22
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for i in `seq 1 4`; do
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tput cup $line 0
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tput el
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let line=line-1
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done
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}
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function invalidpin(){
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log "GPIO$1 is not a valid GPIO pin" "warn";showlogs
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}
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# Takes pin
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# Returns enabled y/n
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function checkpin() {
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p_id=$1
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[[ "$p_id" == *"gpio"* ]] && p_id=${p_id:4}
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if [ -d $root/gpio${p_id} ]; then
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p_en=1
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p_cache[$p_id]=1
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if [[ `cat $root/gpio${p_id}/direction` == "in" ]]; then
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p_in=1
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else
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p_in=0
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p_stat[$p_id]=`cat $root/gpio${p_id}/value`
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fi
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p_dir[$p_id]=$p_in
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else
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zeroes $p_id
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fi
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}
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function zeroes(){
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p_id=$1
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p_en=0
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p_in=0
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p_cache[$p_id]=0
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p_dir[$p_id]=0
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p_stat[$p_id]=0
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}
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function enablepin() {
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[ -z "$1" ] && return
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[[ $1 -gt 27 || $1 -lt 2 ]] && invalidpin $1 && return
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p_id=$1
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if [ ${p_cache[$p_id]} -eq 1 ]; then
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log "Pin gpio$p_id is already enabled" "warn";showlogs
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return;
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fi
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echo $p_id > $root/export
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log "Enabling pin gpio$p_id" "ok";showlogs
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sleep .05;setpindir "$p_id" "o"
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}
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function disablepin() {
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[ -z "$1" ] && return
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[[ $1 -gt 27 || $1 -lt 2 ]] && invalidpin $1 && return
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p_id=$1
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if [ ${p_cache[$p_id]} -eq 0 ]; then
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log "Pin gpio$p_id is already disabled" "warn";showlogs;return
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fi
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echo $p_id > $root/unexport
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zeroes $p_id
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log "Disabling pin gpio$p_id" "ok";showlogs
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}
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function turnonpin() {
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[ -z "$1" ] && return
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[[ $1 -gt 27 || $1 -lt 2 ]] && invalidpin $1 && return
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p_id=$1
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if [ ! -d $root/gpio${p_id} ]; then
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log "Pin gpio$p_id is not enabled" "warn";showlogs;return
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fi
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if [ ${p_stat[$p_id]} -eq 1 ]; then
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log "Pin gpio$p_id is already powered" "warn";showlogs;return
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fi
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[[ ${p_cache[$p_id]} -eq 1 && ${p_dir[$p_id]} -eq 0 ]] && echo 1 > $root/gpio${p_id}/value
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log "Powering pin gpio$p_id" "ok";showlogs
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}
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function turnoffpin() {
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[ -z "$1" ] && return
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[[ $1 -gt 27 || $1 -lt 2 ]] && invalidpin $1 && return
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p_id=$1
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if [ ! -d $root/gpio${p_id} ]; then
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log "Pin gpio$p_id is not enabled" "warn";showlogs;return
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fi
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if [ ${p_stat[$p_id]} -eq 0 ]; then
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log "Pin gpio$p_id is already off" "warn";showlogs;return
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fi
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[[ ${p_cache[$p_id]} -eq 1 && ${p_dir[$p_id]} -eq 0 ]] && echo 0 > $root/gpio${p_id}/value
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log "Unpowering pin gpio$p_id" "ok";showlogs
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}
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function setpindir() {
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[ -z "$1" ] && return;[ -z "$2" ] && return
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[[ $1 -gt 27 || $1 -lt 2 ]] && invalidpin $1 && return
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p_id=$1;p_dir=$2
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if [ ! -d $root/gpio${p_id} ]; then
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log "Pin gpio$p_id is not enabled" "warn";showlogs;return
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fi
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case $p_dir in
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o) echo out > $root/gpio${p_id}/direction;log "Setting pin gpio$p_id as output" "ok";showlogs;;
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i) echo in > $root/gpio${p_id}/direction;log "Setting pin gpio$p_id as input" "ok";showlogs;;
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*) log "$p_dir is not a valid direction" "warn";showlogs;;
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esac
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}
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function refreshpins() {
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if [ ! -d $root ]; then
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tput rmcup;echo "`tput setaf 1`No gpio detected. Send help.`tput sgr0`";exit 1
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fi
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for _pin in `ls $root`; do # Check for enabled pins
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if [[ "$_pin" == "gpio"* && "$_pin" != *"chip"* ]]; then
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checkpin $_pin
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fi
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done
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for _pin in ${p_list[@]}; do # Check for disabled pins
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if [ ${p_cache[$_pin]} -eq 1 ]; then
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[ -d $root/gpio${_pin} ] || zeroes $_pin
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fi
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done
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}
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function printkey() {
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tput cup 0 2
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echo -en "Color key:"
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tput cup 0 16
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echo -en "${c_disabled}pin disabled${rst}"
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tput cup 0 33
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echo -en "${c_in}pin in${rst}"
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tput cup 0 45
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echo -en "${c_on}pin out -> on${rst}"
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tput cup 0 63
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echo -en "${c_default}pin out -> off${rst}"
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}
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function display() {
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tput sc
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printkey
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tput civis
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# tput cup down over
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tput cup 2 2
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for i in `seq 0 ${#p_list[@]}`; do
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_p=${p_list[i]}
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[[ "$_p" == "0" || -z $_p ]] && continue
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[[ "$_p" == "15" ]] && tput cup 3 2
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[ ${p_cache[i]} -eq 0 ] && _status=$c_disabled || _status=$c_default
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[[ ${p_cache[i]} -eq 1 && ${p_dir[i]} -eq 1 ]] && _status=$c_in
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[[ ${p_cache[i]} -eq 1 && ${p_dir[i]} -eq 0 && ${p_stat[i]} -eq 1 ]] && _status=$c_on
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echo -en "${_status}"
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[[ ${#_p} -lt 2 ]] && echo -n "[ $_p]" || echo -n "[$_p]"
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echo -en "${rst} "
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done
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echo
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tput rc
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}
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function printmenu() {
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tput civis
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local opts="$1"
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local oc="$2"
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local line=$3
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tput cup $line 0
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# https://stackoverflow.com/a/28104488
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IFS=,
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menubottom=$line
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for opt in $opts; do
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tput cuf $oc
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echo "${opt}"
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let menubottom="menubottom+1"
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done
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unset IFS
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}
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function monitorpins() {
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local mon
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clearmenu 17 0
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hidelogs
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tput cup 5 2
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echo -en "${c_dim}Monitoring pins${rst}"
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tput cup 6 2
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echo -en "${c_disabled}Press q to stop${rst}"
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#local loading=(". " ".. " "..." ".. ")
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local loading=(". " " . " " ." " . ")
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local lindex=0
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while [[ "$mon" != "q" ]]; do
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echo -en "${c_disabled}${loading[$lindex]}${rst}"
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read -n1 -t1 -s mon
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refreshpins;display
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tput cup 6 17
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let lindex=lindex+1
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[ $lindex -ge ${#loading[@]} ] && lindex=0
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done
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showlogs
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clearmenu 6 0
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}
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function mainmenu() {
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tput civis
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tput cup 5 4
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echo -e "${c_pink}-=-=-= Main Menu =-=-=-${rst}"
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_over=3
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availablemainmenuoptions="e) enable pin,d) disable pin,p) power pin,u) unpower pin,i) set pin direction,r) refresh display,m) monitor gpio,h) help,q) quit"
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printmenu "$availablemainmenuoptions" "$_over" 7
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mymenuspot=$menubottom
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let mymenuspot="mymenuspot+1"
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tput cup $mymenuspot $_over
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echo -n "> "
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tput el
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tput cnorm
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read -n1 mainmenuopt
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case $mainmenuopt in
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e) echo -en "${c_dim}nable${rst}";enablemenu;mainmenu;;
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d) echo -en "${c_dim}isable${rst}";disablemenu;mainmenu;;
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p) echo -en "${c_dim}ower${rst}";powermenu;mainmenu;;
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u) echo -en "${c_dim}npower${rst}";unpowermenu;mainmenu;;
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i) tput cub1;echo -en "${c_dim}d${rst}i${c_dim}rection${rst}";directmenu;mainmenu;;
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r) echo -en "${c_dim}efresh${rst}";refreshpins; display;mainmenu;;
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m) echo -en "${c_dim}onitor${rst}";monitorpins;mainmenu;;
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h) helppls;mainmenu;;
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q) tput rmcup;exit 0;;
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*) log "$mainmenuopt is not a valid menu choice" "warn";showlogs;mainmenu;;
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esac
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tput rmcup
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}
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function helppls(){
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clearmenu 17 0;hidelogs;tput cup 0 0;tput el;tput civis
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tput cup 5 0;echo -en "\e[38;5;219m";tput rev
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echo -n " "
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echo -n "GPIO Monitor & Control Script"
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echo -n " "
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tput sgr0
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tput cup 6 18;echo -en "${c_pink}-=-=-= Help menu and about this tool =-=-=-${rst}"
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tput cup 8 0
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cat << EOF
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This tool was designed to be able to monitor and control, in real-time,
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the GPIO pins on my pi zero without needing to write a special python
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script for a quick test or check.
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The script functions as explained below:
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All menu options are single letters and are accepted without needing
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to press enter. The only time enter is required is when multiple
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characters may be necessary (e.g. entering a pin number).
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This program comes with no warranty and only interacts with the GPIO
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pins on the pi. Anything connected to those pins is not the
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responsibility of this script.
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Enjoy <3
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EOF
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read -n1 -s
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tput cup 5 0;tput el
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tput cup 6 0;tput el
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clearmenu 18 0;hidelogs;showlogs;printkey
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}
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function clearmenu(){
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tput civis
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local spot=5
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local menu=0
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[ -z $2 ] && menu=40
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local max=$1
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let max=max+1
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[ $max -gt 19 ] && max=19
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while [ $spot -lt $max ]; do
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tput cup $spot $menu
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tput el
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let spot=spot+1
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done
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}
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function gpiodisclaimer() {
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local offset=$1;local alpha;local beta
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let alpha=8+offset
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let beta=9+offset
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tput cup $alpha 40;echo -en "This is the GPIO# not the physical"
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tput cup $beta 40;echo -en "pin location."
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}
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function enablemenu() {
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tput cup 5 40
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echo -en "${c_purple}-=-=-= Enable Pin =-=-=-${rst}"
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tput cup 7 40;echo -en "Enter the pin ID you wish to enable."
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gpiodisclaimer
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tput cup 11 40;echo -n "> "
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tput cnorm
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read enpin
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enablepin $enpin
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clearmenu 11;refreshpins;display
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}
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function disablemenu() {
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tput cup 5 40
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echo -en "${c_purple}-=-=-= Disable Pin =-=-=-${rst}"
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tput cup 7 40;echo -en "Enter the pin ID you wish to disable."
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gpiodisclaimer
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tput cup 11 40;echo -n "> "
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tput cnorm
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read dispin
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disablepin $dispin
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clearmenu 11;refreshpins;display
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}
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function powermenu() {
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tput cup 5 40
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echo -en "${c_purple}-=-=-= Power Pin =-=-=-${rst}"
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tput cup 7 40;echo -en "Enter the pin ID you wish to turn on."
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gpiodisclaimer
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tput cup 11 40;echo -n "> "
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tput cnorm
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read powapin
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turnonpin $powapin
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clearmenu 11;refreshpins;display
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}
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function unpowermenu() {
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tput cup 5 40
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echo -en "${c_purple}-=-=-= Unpower Pin =-=-=-${rst}"
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tput cup 7 40;echo -en "Enter the pin ID you wish to turn off."
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gpiodisclaimer
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tput cup 11 40;echo -n "> "
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tput cnorm
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read powapin
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turnoffpin $powapin
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clearmenu 11;refreshpins;display
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}
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function directmenu() {
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tput cup 5 40
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echo -en "${c_purple}-=-=-= Change Direction =-=-=-${rst}" # | LAST
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tput cup 7 40;echo -en "Enter the pin ID you wish to set the"
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tput cup 8 40;echo -en "direction of. This is the GPIO# not"
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tput cup 9 40;echo -en "the physical pin location."
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tput cup 11 40;echo -n "> "
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tput cnorm
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read dirpin
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clearmenu 11
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tput cup 5 40
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echo -en "${c_purple}-=-=-= Change Direction =-=-=-${rst}" # | LAST
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tput cup 7 40;echo -en "Enter the direction you would like this"
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tput cup 8 40;echo -en "pin to go in."
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tput cup 10 40;echo -n "o) output"
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tput cup 11 40;echo -n "i) input"
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tput cup 13 40;echo -n "> "
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tput cnorm
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read -n1 dirdir
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setpindir $dirpin $dirdir
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clearmenu 13;refreshpins;display
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}
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tput smcup
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refreshpins
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display
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mainmenu
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################################################
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#pi@pizero:/sys/class/gpio/gpio2 $ cat direction
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#out
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#pi@pizero:/sys/class/gpio/gpio2 $ cat edge
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#none
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#pi@pizero:/sys/class/gpio/gpio2 $ cat uevent
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#pi@pizero:/sys/class/gpio/gpio2 $ cat value
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#0
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# gp=/sys/class/gpio
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# for pin in `ls $gp`; do if [[ "$pin" == "gpio"* && "$pin" != *"chip"* ]]; then dir=`cat $gp/$pin/direction`;[ `cat $gp/$pin/value` -eq 0 ] && echo "pin $pin ($dir) disabled" || echo "pin $pin ($dir) enabled";fi; done
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Loading…
Reference in new issue