🤖Robot Design Search

This is front cover for japanese I-Sobot robot upgraded to BT version.To control I-Sobot using any phone over Bluetooth you just need: arduino nano + HC05 + IR transmitter from any useless remote + NPN transistor +1K resistorSchematic :nano's digital pins 3,4 to RX/TX of the HC-05 BT module, 5 to IR Transmitter diode from any useless TV remote, BT546 NPN transistor and 1K resistor is connected to power up Arduino and BT module streight from Li-Ion power supply. I have used old SAMSUNG Li-Ion battery + Charging&protection board.