Do those SSR’s switch DC? I ordered one set to play with but the spec says 220vac.
Cool board, do you have any closeups of how the IBT is mounted onto the main PCB?
I’m using these and they are working fine.
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I removed the capacitor and green, screw connectors and directly plugged in the board. Afterwards i use 4x copper wires to link M+ M- an power pins to the board. There is holes for the stand legs, but i don’t have them in stock and every batch from E-bay IBTs have totally random distance between the drill holes. (Same as relay boards) It is only module soldered directly in PCB, because of its radiator weight and potential of shaking because of its mass. After assembley is done, i use very strong hot glue to fortify both radiators, ADS1115, Tilt sensor and connecting wires.
Good question. Those ssd i haven’t fired up yet. As soon as testing will be done, i will give my review.
I can confirm almost all SSR boards for Arduino are 220AC, was searching a DC SSR board for my automatic row crop weeder application to drive with a proportional valve then I adopted Mosfet solution.
Just had a test on the breadboard. My SSD board is powered by Omron G3MB-202P solid state relays. It is written on it, that load is 240V AC, without load, impenace is around 7k ohms. BUT, I connected 12v positive and 40mA LED with 1k resistor and i could switch it on. As most likely it is thyristor, it doesn’t switch off by itself with so tiny load even with signal turned off, so it is necessary to use a pull down resistor or somehow short out output.
Additional info- it is necessary to get input voltage near 0volts, to switch ssd relay off. So additional NE555 timer with MOSFET for input and diode with capacitor at output is one of solutions.
In the end of the day - add bigger radiator to 5v regulator and stick to classical relays 