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The tblock is this two of these: https://ecs12.tokopedia.net/newimg/cache/300/produ...It doesn't have to be a tblock, you can just solder wires :)The four capacitors are just there to avoid rippel from the power supply.
Smart Lamp Chic'on Cube
3A Variable bench PSU with digital readout on colour display using ATMEGA8
DIY Tough Bluetooth Boombox (Lasts 20hrs!)
Raspberry Pi Cloud IP Camera with POE
DIY Portable Bluetooth Speaker 30W, BT4.0, Passive Radiators
Enhanced NRF24L01 radio with a DIY Dipole Antenna modification.
Wireless Mesh with Graphics LCD
Infinity Mirror Clock
Node-RED Application Development with Sensorian
DIY Bluetooth Speaker
Splice Cable Like A Rocket Scientist
Arduino Plays Piano Tiles
Raspberry Pi Audio Player
Convert an ATX PSU Into a Bench PSU that Measures Current
Raspberry Pi powered by batteries
DIY Smart Power Sockets