New tp4056 lithium cell charger module with battery protection
This is another single cell lithium charger module, but with battery protection components on board and a micro USB connector.…
12v solar power system – testing the batteries
A quick check of some of the batteries in my solar power station. First a test with a Sealey BT102…
Review: 1w 350ma led driver with the elusive 6200 chip
This is a 350mA LED driver module kindly provided for review by icstation.com. Seems like a competent performer. For a…
Arduino c mystery – integer constants and 6-bit numbers
My inexperience with C led me to mix my data types and spend several hours baffled by the result! MAX7219…
Arduino pwm solar charge controller #1 – mosfet configurations
Thoughts about MOSFET configurations for my new Arduino PWM Solar Charge Controller project. I've settled on an N-channel, high-side MOSFET…
Review: soshine s7 li-ion/nimh single cell battery charger
Review of the Soshine S7 battery charger and 3 different lithium 18650 cells bought on eBay. I'm not providing a…
12v multimode learning wireless remote control
A low cost single channel wireless remote control system with latching, toggle and momentary modes and remote fob code learning…
Arduino pwm solar charge controller #2 – charge pump
For a charge pump circuit, I need complementary PWM outputs - one going high when the other goes low. This…
Arduino experiment: playing with inline assembler
What started with the need to embed a single assembly language instruction in an Arduino sketch, became a complete flashing…
Review: 4-cell/6-cell 18650 usb mobile power banks #2
Review of two different USB mobile power banks - white 4-cell with 3-digit 7-segment LED display and black 6-cell with…