Search found 3 matches
- Wed Sep 01, 2021 10:51 pm
- Forum: Raspberry Pi microcontroller boards
- Topic: Anyone have some sample code for UART or SPI, communication between two boards?
- Replies: 3
- Views: 5796
Anyone have some sample code for UART or SPI, communication between two boards?
Sorry new, but I was curious if anyone had some sample code using two RP2040 boards. I'm trying to learn some basics and had a project in mind. One board just takes basic switch inputs and the other board just does basic outputs to turn on/off LEDs. It would be a short distance (2 meters or about 6 ...
- Mon Jun 24, 2019 6:23 am
- Forum: ESP32 boards
- Topic: MCP23017
- Replies: 2
- Views: 3904
Re: MCP23017
Well that was pretty dumb of me, thank you for taking the time to help, I don't even know how I did that. 
It works now
I will try my best not to ask anything this basic again.
It works nowI will try my best not to ask anything this basic again.
- Mon Jun 24, 2019 3:36 am
- Forum: ESP32 boards
- Topic: MCP23017
- Replies: 2
- Views: 3904
MCP23017
I'm very new to programming and I apologize if this is seems rather basic, but I'm trying to learn new things. Thank you for any help in advance. I have an esp32 and I wanted to create a simple alarm for my house using MQTT, but I needed more available inputs for hardwired switches. The MCP23107 see...