Solar bird

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Circuit

Solarbird with 4053 mux circuit cropped.jpg

Apparently, this circuit has been around the SGMK for quite a while, but its history is uncertain – maybe you can clarify?

The 4053 IC is a "CMOS Triple 2-Channel Analog Multiplexer/Demultiplexer with Logic-Level Conversion".

Board

Solarbird pcb bottom 400x1000.png Solarbird pcb top 400x1000.png

The PCB, made Shenzhen ready by Omega_attraktor at the KitSprint ANORG 2018 is available on kitspace.org: kitspace.org/boards/github.com/sgmk/solarbird_shenzen_rdy