DIY Tomos analog tachometer with OLED display

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My homemade moped tachometer with analog dial and OLED display. Retrofitted into speedometer housing. Still in a state of perfecting.

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4 layer PCB. STM32 microprocessor, DRV8846 motor driver, automotive dial stepper motor and 128x32 OLED display inside.

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This is a tachometer from a boat, the board marking is erased in the video. This is sold at aliexpress.

sergeylike
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Hello, what sensor you've used to measure the engine speed?

BassDacicOfficial
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you have imposible cool stuff at home my friend XD

СтефанБелый
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brate svaka cast koliko bi kostalo da mi napravis jedan ovakav obrtomer

lukamartinovic
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One question, I have a tomos automatic and i bought a tachometer, where do i connect the wires?

romanocardinale
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