How to Send Data from Arduino to Pixhawk using i2c?

[Philip_Pincencia]

I a trying to send data from the Arduino uno (slave) to Pixhawk (master). It works fine when the master is my MEGA, but I can’t seem to get my head around on how Pixhawk works. Are there code examples that maybe I can take a look at?

[geofrancis (GeoMuir)]

Unsupported Sensors? Try Arduino + Lua!

[arduino-i2c] Some of you already know my enthusiasm for ArduPilot Lua scripting, and if you’re reading this, you’ll probably pick up on it pretty quickly. When I discovered the I2C, UART, and CAN bindings, the gears started turning, wondering how well we could leverage those comms protocols to expand the ArduPilot peripheral ecosystem without requiring firmware updates and dedicated, baked-in drivers. Today, I uploaded an Arduino library to speed that endeavor along. It allows you to use a…

[Philip_Pincencia]

Thanks for the suggestion. I’ll try it out. But, just in case it doesn’t work for me, are there any other ways that just use regular i2C without extra libraries to send message from arduino to pixhawk?

[geofrancis (GeoMuir)]

not really, the only other way is you would have to emulate an already supported sensor. id you look at the DS18B20 example its done without the library.