Cannot establish Communication

[mohitathwani]

I am trying to establish a connection between my Arduino Uno and RPi.

I followed the connections and run the Getting Started example on the Arduino and "pongtest" on the Pi

Output on Arduino -

‰­¼8)>±û8<«<²)=

[ch3wb]

I've got exactly the same problem.

Let me point out that each time you try to send a message with the code from the lib's examples, you can get two different "fails". Ex. : "Now sending 3411559399...ok...Failed, response timed out." -> ok / error but on your arduino : "Now sending 8286...failed. Failed, response timed out." -> error / error

I've got the same issue on a nano. The worst thing, it has worked before with the exact same setup ...

[sparupat]

I was running into the same issue. However, adding a 10uF capacitor between the Vcc (3.3V) and GND did the trick. Apparently the 3.3V regulator is not stable enough and adding a capacitor between those two reduces the jitter.

All the best!

[llaull]

+1 sparupat, I using it