I need an ESP32 development board with a ton of I/O

Using Arduino Microcontrollers
1

Got any ideas? I was originally going to use an ESP8266 interfaced with an Arduino Mega but that's a bit above my level.

I need an ESP32 board with more than 15 I/O pins. Can anyone help me?

2

Virtually any ESP32 board except the ESP32-CAM has more I/O than that. Check your favorite online retailers.

3

Okay. Can I interface the camera part of an ESP32-CAM with a normal ESP32? I'm wondering if I can use one MCU instead of two for a remote control rover with a camera and robotic arm.

4

Can you?
Probably not, it's an advanced bit of kit done in RTOS.
More to the point, Why would you when it it already done for you?

Interfacing an ESP32-CAM and a Mega or an Uno is not too tough. Research serial connections between Arduinos. You'll be surprised how fast you can share data between the two of them.

1 Like
5

Okay. Would I be able to use the ESP32-CAM to connect the Arduino to the internet as well as stream video?

6

Yup.
What kind of project are you doing?

7

I'm working on a concept for a 4WD rover I can control from anywhere I have WiFi. I want it to have a robotic arm and a linear actuator as well as live camera feed.

8

Like this? Any suggestions for my RC car project?

9

Yes but less...
Tall.

10

If you just need basic i/o you could use an MCP23017 io expander chip on pins 12 and 13 to give you 16 general purpose gpio pins

I have a demo sketch which you might like to have an experiment with: GitHub - alanesq/esp32cam-demo: esp32cam module demo / shows how you can easily use the esp32cam including reading raw rgb data, streaming, displaying the image etc.(ArduinoIDE or PlatformIO)
You will need to change line "#define useMCP23017 0" to "#define useMCP23017 1"

11

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.