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gpio [2022/04/16 12:23] (current) |
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+ | ===== RPI ===== | ||
+ | |||
+ | * https://www.raspberrypi.org/documentation/hardware/raspberrypi/gpio/README.md | ||
+ | * https://raspberrypi.stackexchange.com/questions/9298/what-is-the-maximum-current-the-gpio-pins-can-output# 50 mA. | ||
+ | * https://elinux.org/RPi_Low-level_peripherals#Internal_Pull-Ups_.26_Pull-Downs | ||
+ | * http://www.raspberrypi.org/documentation/usage/gpio/ | ||
+ | * http://makezine.com/projects/tutorial-raspberry-pi-gpio-pins-and-python/# RpI | ||
+ | * https://electronics.stackexchange.com/questions/7423/what-is-a-pull-up-and-pull-down# | ||
+ | * http://razzpisampler.oreilly.com/ch07.html# PullUp are connected to Ground | ||
+ | |||
+ | {{https://i1.wp.com/cdn.makezine.com/uploads/2014/02/rpi-circuit.png?resize=620%2C397}} | ||
+ | |||
+ | |||
+ | ==== input ==== | ||
+ | |||
+ | * https://www.raspberrypi.org/forums/viewtopic.php?t=46525# | ||
+ | * 50kΩ pull up/down resistors | ||
+ | |||
+ | |||
+ | * The pins can only source or sink 16mA so limiting the current to that level (with at least 220 ohms) makes sense. | ||
+ | ===== MISC ==== | ||
+ | |||
+ | * http://www.sonelec-musique.com/electronique_theorie_led.html | ||
+ | * http://visualgdb.com/tutorials/raspberry/LED/ | ||
+ | * https://vimeo.com/153263103#connected-tizen-20160131rzr# | ||
+ | * https://github.com/mozilla-iot/wiki/wiki/Configuring-GPIO-for-use-with-the-gpio-adapter# IoT | ||
+ | |||
+ | ===== MORE ===== | ||
+ | |||
+ | @TaG: RemoteControl InfraRed [[Io]] | ||