Banggood seems to be middle of the road, batteries are more expensive but shipping is reasonable.
The 18650 batteries are cheapest on AliExpress but really pay attention to the shipping costs, some are horrendously high. prototype circuit board Amazon.ca / Banggood / AliExpress.Terminal Connectors (alternate to JST Connectors) Amazon.ca / Banggood / AliExpress.2.54mm Straight Female Round PCB Pins Amazon.ca / Banggood / AliExpress.A TP4056 5V 1A Micro USB 18650 Lithium Battery Charging + Protection Circuit Board Charger Module Amazon.ca / Banggood / AliExpress.2.54mm Breakable Pin Male Pin Header Connectors Amazon.ca / Banggood.BC547 NPN Transistor (x1) Amazon.ca / Banggood / AliExpress.S9012 PNP Transistor (x1) Amazon.ca / Banggood / AliExpress.1N5819 Schottky Barrier Rectifier Diode (x1) Amazon.ca / Banggood / AliExpress.22awg wire for LED strips Amazon.ca / Banggood / AliExpress.Rocker Switch 2pin Amazon.ca / Banggood / AliExpress.Momentary Toggle Switch 2 pin Amazon.ca / Banggood / AliExpress.JST connectors Amazon.ca / Banggood / AliExpress.5V Coil Bistable Latching Relay Amazon.ca / AliExpress.10k resister (x2) see above for purchase links.220 ohm resistor (x1) Amazon.ca / Banggood / AliExpress.18650 battery (x1) Amazon.ca / Banggood / AliExpress.Breadboard jumper wires of assorted sizes.There's actually a piece of plexiglass that slides over the buttons and LED to keep the rain off of them. The back of the sign shows the rocker switch, push-button switch and an LED to show that the sign is on in case it gets forgotten and left on, we can see it from our living room window and go turn the lights off. In these pictures you can just see the LED strings in behind the sign to light it up, it actually needs maybe another 3 rows, I just haven't gotten around to installing them. We had to be able to turn it off for the weekends, holidays, and vacations without it turning itself back on.She had to be able to turn it off once the class was finished yet it turn itself back on the next night.Charge the battery during the day with a solar panel.Basically, the circuit needed to do the following While this worked it didn't fill all the requirements I wanted in the backlight for her sign.
Battery powered led strip progressive how to#
To run power out to where the sign is would have been a lot of trouble, during this time I watched a bunch of YouTube videos on how to make a street light using an LED, solar panel, and a battery. We had a sign out front but even with a street light right there the sign was hard to see. My wife teaches people how to make soap, most of her classes were in the evening and here in the winter it gets dark around 4:30pm, some of her students were having trouble finding our house.
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