Hi,
,
You need bypass capacitors and place a 10uF capacitor across the power pins of the Tx at the radio pins on the PCB.1 Why ? No schematic shows that on every tutorial I saw and it works on the breadboard
Why do you need D1, D2 and D3?
2 This prevents the signal from B1, for example, to go in B2 trace. Since I need all buttons to go to VCC pin and I also need to check which button is pressed
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10uF helps to stabilize the circuit and provide some power reserve when the TX transmits.
Bypassing with 0.1uF caps is a standard practice, especially with digital circuitry and battery supply, to prevent digital noise moving around the circuit through the power supply tracks.
Even at this point you can add bypass caps to your PCB. 0.1uF disc ceramics. -
How can the B1 signal get to the B2 or B3 traces? They are wired each directly to a separate input pin and supplied from the fixed positive supply
Tom... 