DIY Kits FM Transmitter Board with Microphone, 88MHz-108MHz
- Price: $0.99~AU$1.31
https://www.icstation.com/frequency-modulation-wireless-micr…
DIY Kit Touch Controled Dice, LED Electronic Soldering Practice Kits for Beginner
- Price: $2.6~AU$3.43
https://www.icstation.com/electronic-dice-touch-control-lamp…
38KHz Infrared Control Transmitting Receiving Shield Module
- for Raspberry Pi RPi B+/2B/3B
- Price: $6~AU$7.92
https://www.icstation.com/38khz-infrared-control-transmittin…
Tips:
- US$5 (~A$6.60) shipping, free for US$20 order (around AU$25.89).
- Delivery time: 2-4 weeks.
- Order will be shipped via Register Airmail with Insurance Tracking Number. If order lost, we will resend or full refund.
oh man! good old days, I had couple of books with 100s of electronic circuits like this
another implementation of the famous "knight rider" circuit with 555 (can be replaced with a 2 transistor astable multivibrator) + 4017