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Hello,First of all I`d like to thank you for the schematic.I`d like also to ask:1. Do I have to program the PIC?2. Do you need to connect the emitter end to Rx GND or just the Batt (-) - after all we are using another battery for the load.3. Isn`t too big the resistor on base of the transistor? 220 ohm would be enough by my calculation.May be I`m wrong but I have no so big experience with the PICs.Thank you!