ESP32 Schematic of Waveshare General Driver for Robot #12
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Hello and good day to you. I have a question. Is the Raspberry Pi 40 pins on Waveshare General Driver for Robot connected to the ESP32 38 pins? |
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esp32 gpio 32 i2c sda is connected to rpi pin 3 sda gpio 2 |
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Thank you for the reply.
I did continuity test between the raspberry pi style 40pin header and the esp32 pins. No continuity except for SDA, SCL, TX, RX, 5V, GND. I did esp32 blink test on all io pins. No blinking on the raspberry pi breakout board.
I was hoping the 40pin header could be use for button signal input and light signal output. Is it possible to do it with Waveshare General Driver for Robot ? |
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The waveshare general robot driver board is very limited in extra io pins. I would suggest add another esp32/pico to control the led and keypad. They are cheap and easy to use. gendrv linorobot2_hardware micro-ros-- usb serial -- rpi A single micro-ros agent can control multiple serial ports. https://micro-xrce-dds.docs.eprosima.com/en/latest/agent.html Interfaces, keypad msg -- int32 publisher keypad https://github.com/Chris--A/Keypad rgb led https://www.instructables.com/Driving-RGB-LED-strips-off-an-Arduino/ or you can use p9813 led driver module and fastled driver https://github.com/FastLED/FastLED
I am traveling and do not have the hardware to test until next month. |
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micro-ros multiserial usage, ros2 run micro_ros_agent micro_ros_agent multiserial --devs "/dev/ttyUSB0 /dev/ttyUSB1" --baudrate 921600 You may need to use by-path dev names. |
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The ESP32 Schematic of Waveshare General Driver for Robot can be found at their Wiki.
Wiki
Schematic.
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