Questions tagged [gpio]

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3
votes
2answers
151 views

Can somebody explain why some pins on Olimex ESP32-EVB cannot be used?

I am in need to configure two UART connections from Olimex ESP32-EVB to a scanner and to a card reader. I was exploring the GPIO pins that could have helped to establish those connections, but ...
0
votes
1answer
38 views

Mongoose OS and button press detection

Under Mongoose OS, I’m trying to write some code to detect that a button was pushed. I wrote the code below, but it thinks the button is always pushed, except when I actually push it. When I push and ...
7
votes
3answers
5k views

Sonoff Dual - Where to find GPIOs

I'm looking for the GPIO's I can use in SonOff Dual ( after flashing my own software ). In SonOff Basic - there are GPIOs to acess LED, Relay, and what is most needed for me - GPIO14 for external ...
1
vote
2answers
189 views

How to change dell edge gateway 3001 gpio pin to analog

In dell edge gateway how we can change the gpio pin from digital to analog? It has Ubuntu core as OS. It has 8 gpio pins only some of them I want to make digital and some of them analog. I have ...
1
vote
0answers
97 views

Control GPIO of ESP32 using Bluetooth [closed]

I’m using ESP32 to control relays using MQTT ( both over Arduino and MicroPython ). For special cases, and not for everyday operation, I wish to control a specific GPIO over Bluetooth ( a reset irq)....
1
vote
1answer
110 views

Polling multiple GPIOs

I am trying to pull a few bytes per second from a microchip board attached to a temperature sensor and a photodiode, using Windows 10 IoT on a Dragonboard 410c. It seems like there's either ...