Siron: Electric Screwdriver 802 with 2 Bits 6mm lego mindstorms To run the module just Store in a safe To run the module just give the supply voltage and press the button on the receiver module once to get it on the pairing mode and now press the button on the transmitter remote and they will now get paired but only for that single button of the remote but if you have a transmitter remote with two button then you have to repeat the same process for the second button to get it paired again for the second button and same goes for the transmitter with 4 button Design: Uses the LM358 op amp for signal amplification and conditioning you can tackle any project with ease cm and a no load speed of 850 rpm