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Hi everybody! Finally I found the time to start building Mr. Radioactivity. The robot navigates around via Sharp and tactile sensor, measures ionizing radiation via Geiger-Mueller tube and according circuit and sends the registered impules wireless to a 2 digit 7-segment counter. The RX/TX unit is from an old RC toy car. I removed the TX PCB from the transmitter case and placed the RX PCB as well as a small perfboard with two 4026 decade counter and 7-segment display driver in it (You can find the ...
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