Bluetooth HC-05 apply
Hello, I made HC-05 adapter, how was described by this link https://www.petoi.com/forum/hardware/add-bluetooth-module-for-uploading-sketches-and-communication?origin=auto_suggest, don't changed name and password, and plugged it. Next I downloaded application Code&Robots and connected via bluetooth. And when start selecting actions cat start beeping but doesn't any reactions. Can you help me please a bit, what I did wrong, maybe I need change a code or etc?
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The Instructable post is missing a 10 uF capacitor between the DTR and reset pin. It's required for auto uploading the sketch. But the serial communication should always work.
In your video, the serial is receiving commands but not recognizing the character. Probably related to baud rate or frequency. Have you set up the HC-05 module with "at" commands, as described in the Instructable post?
Could you try the Arduino example codes ASCII Table to check whether the serial is working? It should print out a table in the serial monitor.