Diy simple Solarbotic Solar BEAM
this is a simple project to build a solarboticwe use 7pcs of bpw34 silicon photocell，each of them can provide about 0.53V voltage and 1.8mA current,that is very small，right？so we use a Circuit called "solar engine",to Storage electric energy,and a Voltage trigger(HT7027A) to detect the Capacitive vo...By: banlanji
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