PWM Solar Charge Controller Version 3 - Adam's Arduino Projects

The third version of this Arduino based PWM solar charge controller came about because of a comment by Julian Ilett on one of my previous videos. Could I reduce the milliamps consumed by the charge controller to single figures?

Get the sketch & view the layout diagram: http://admw.uk/it

PWM Solar Charge Controller Version 1: https://www.youtube.com/watch?v=db1JZUecYlI
PWM Solar Charge Controller Version 2: https://www.youtube.com/watch?v=1wc76v_sDjg

ATTiny25/45/85 Datasheet: http://www.atmel.com/images/atmel-2586-avr-8-bit-microcontroller-attiny25-attiny45-attiny85_datasheet.pdf
How to get three PWM outputs on the ATTiny85: http://www.technoblogy.com/show?LE0
Additional board managers ATTiny85 URL: https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json
Julian Ilett's Arduino PWM Solar Charge Controller Playlist: https://www.youtube.com/watch?v=qY-6GK873ts&list=PLjzGSu1yGFjUsB3ChZJ2_-MTNp7bHaKED

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Видео PWM Solar Charge Controller Version 3 - Adam's Arduino Projects канала Adam Welch