Solar Panel Shutoff and Diodes

The panels I bought did not come with built in blocking diode so I added one for each panel. I also added a P and N Fet pair so I can disable the solar panel to make an accurate battery reading while it's sunny.

The board on the left is the low voltage cutoff and charge controller for the battery.

Another view

The current iteration of the device.

Planar PLL2410W 24" Monitor Blinking Blue LED Repair

I've been having issues for the last year or so with these monitors failing. Seems they all mostly share a common failure mode, had one with a bad LCD driver chip. The others have it where LED blinks blue and they either flicker the backlight or just stay dark with no image. The menu will not show and it will not display anything but the computer detects the monitor. I've found in almost every one of these they have failed because of bad capacitors. Here's the steps I have taken to repair probably 50 of the monitors so far with nearly 100% success. !!WARNING!! Before starting be sure the board is de-energized and the capacitors are discharged. If you are unsure of how to do that please do not attempt this repair or repair at your own risk. The capacitors on the board can hold lethal voltages especially the large one on the bottom left. !! So far I've found it's mostly the 4 caps on the output rails of the transformer on the psu board that are the cause of the f...

New Prototype of Greenhouse Automation system + Weather Station

New prototype on breadboard *RS485 support *Sd card for offline logging *Flash chip for configuration storage *MCP23016 for GPIO extension soon to be MCP23S17 instead PCB Mockup pre fabrication

Complete Anemometer and Wind Vane Assembly

First complete wind vane and anemometer assembly Anemometer and wind vane assembly. Potentiometer inside wind vane for readings Shaft assembly Shaft is a bolt through a fidget spinner bearing with another smaller bolt with a flat ground into it attached inside the larger shaft bolt

Homegrown Projects

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