@John J Did you made other things into the main code ? Modify the InstinctBittle.h ?

Maybe it loads only the first frame because this is run 1 time into void setup(){} to run the movement you sould put correctly this command into void loop(){}

@Leslie Solorzano I tried codecraft but it doesn't work for me. With codecraft normaly when you upload code it erase only the main program. I think instincts stay in place. So don't panic ! Take your time to do calibration and understand the code in order to improve it later.

In Open cat, the main program it have a buzzer test into the setup(){} the fonction is playMelody(MELODY); if you take it into loop(){} the robot will pley the bootup melody forever. But into setup(){} it will play 1 time. If the battery are off and you have plugged in the USB PC Board the Bittle enter into a fonction made to do buzzing. (I'm not sure but) it's into loop(){} if (voltage < #ifdef NyBoard_V0_1 650 #else 300 #endif ) { //give the cat a break when voltage drops after sprint //adjust the thresholds according to your batteries' voltage //if set too high, the robot will keep crying. //If too low, Nybble may faint due to temporary voltage drop PTL("check battery"); PTL(voltage);//relative voltage meow(); delay(500); } Everything are stored into Flash memory. You can upload/write more than 100,000 times on the Atmega. Follow the repertories order (https://bittle.petoi.com/4-configuration) and follow the README instruction into the ZIP of the source code. Everything will working fine ! Have fun !

In the main pogram At the end of void setup(){} you can use skillByName("sit"); on boot your bittle will be sitting!

What's your configuration ? Is it an Arduino linked to Bittle ? (this should be fonctionnal like to send a command over bluetooth)

I have reflashed my bittle considering all of the informations (like the first time). I don't know whats was wrong 😵. But it's worked ! Thank you so much !😺