IR Wireless Audio Transfer
9:16
Latch Circuit - Wake up + 0 Power Consumption (useful circuit)
17:06
Sensors - which one to use
8:37
555 IC Wireless Audio Transmitter and Receiver
11:16
Crystal/ceramic resonators & oscillators + Digital clock
13:38
One axis PID encoded DC motor control
15:18
Battery Charger & Protection & Boost 5V or 12V
17:00
Which radio module? NRF24, LoRa, CC1101, HC12, 433MHz, HC05
12:35