DIY. Electronic automatic motorcycle chain lubricator with your own hands. Option #1.
Variant 2 - dual-mode: • DIY. Смазчик цепи двухрежимный. Вариа...
Links to parts:
peristaltic pump (choose 2x4mm) - http://ali.pub/5ijw65
digispark controller - http://ali.pub/3ou0e0
digispark controller (black) - http://ali.pub/3yre95
field effect transistor - http://ali.pub/3ou31o
rectifier diode - http://ali.pub/5by8ey
resistors (choose 10k) - http://ali.pub/3ou13a
silicone hose (choose 2x4mm) - http://ali.pub/3ou3b7
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