New pcbs from jlcpcb: julianno
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Second attempt to produce a solderless Arduino module backboard.
Flyback diode to protect relay
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Using a 1N4005 diode to quench the high flyback voltage from a 12V fan…
Julian’s electronics postbag #145 – oleds and fpgas
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com It's Postbag White 128X64 OLED LCD LED Display Module For Arduino 0.96" I2C IIC…
High quality engineering in stainless steel
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Some exquisite bodging of stainless steel wire mesh to make an insect screen for…
Supercapacitor pir led light repair
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com The Supercapacitor module (6x 120F 2.7V) didn't like spending a year outdoors. Now I've…
It works! arduino, transceiver, oled, touch sensor and relay
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Software for the mouldy shed project has progressed (but still fits on one page).…
Ttp223 capacitive touch switch revisit
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Taking another look at the TTP-223 touch sensor module. Making the module breadboard-friendly with…
Power tool powerbank powwow
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com How to power my little Arduino project while it's in the shed. Most USB…
Stripdown: antminer t9 bitcoin miner
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com Stripdown of a Bitmain Antminer T9+ cryptocurrency mining rig. This monster can calculate 10.5…
Arduino – sensor, transceiver, display – simple code
JLCPCB Prototype for $2(Any Color): https://jlcpcb.com A sensor (at a remote location) transmits its data to an OLED (in my…