I was half expecting this controller to be real MPPT - or at least have an inductor and do a modest amount of DC/DC conversion. But no, it's an out-and-out fake, a fraud, a con, a rip-off. It looks like a PWM controller though, so it's worth checking how well it works. ... https://www.youtube.com/watch?v=KA3X8XLxWHU

Updates to my PIC12F683 NeoPixel WS2812B Christmas decoration idea including a change from line to dot mode, fixing an out-by-one error and revealing a programming technique using the flags that will knock some less flexible programmers of their perches! ... https://www.youtube.com/watch?v=3SFWPiEBouQ

Using the ACS712 current sensor to measure current in a circuit. Benefits are that it can measure current in the high side of the circuit, adds just 1.2 milliohms to the cuicuit to be measured and includes all the amplification electronics on chip. float amps = 0; float maxAmps = 0; float minAmps = 0; float lastAmps = 0; float noise = 0; void setup() { Serial.begin(9600); } void loop() { amps = (516 - analogRead(A0)) * 27.03 / 1023; amps = (amps + lastAmps) / 2; lastAmps = amps; maxAmps = max(maxAmps, amps); minAmps = min(minAmps, amps); noise = maxAmps - minAmps; Serial.print(amps); Serial.print(" "); Serial.println(noise); if (Serial.read() != -1) {maxAmps = amps; minAmps = amps;} delay(100); } ... https://www.youtube.com/watch?v=UF5jrnXvTlM

This is a 350mA LED driver module kindly provided for review by icstation.com. Seems like a competent performer. For a 10% discount, use the code below. Product link:http://www.icstation.com/product_info.php?products_id=3196 Code: julianics Discount Amount: 10% Max Use: 1 No Min Order Started Date: 6th Apr, 2014 Ended Date: 16th Jun, 2014 ... https://www.youtube.com/watch?v=E4D-odvmT1A