![]() ![]() ![]() This has the feel of trying to do the 'impossible' by breaking all of the good design rules.Īt first glance, it looks like at least the Servo Side Pin may need to adopt a weak pull up state to allow some of the possible talker/listener pairs to communicate, plus there is R, a 10k resistor in its path, which will also considerably weaken the strength of the signal in both directions. hence it is not unknown to find a faulty logic circuit to be 'almost working' or even working correctly, in spite of a significant hardware failure. Normally with logic circuits, you aim for a 'strong' signal that can reject interference, etc. I just scrapped some stuff in my drawers."ĭo you have enough control over the receiver to coordinate the multiplexing? ![]() " 10kohm and something like 1n4148 or similar. With this picture and in a later post of his, he said it uses. with further research, I found one-reference in a forum to combine the simplex line with the half-duplex line at It can do software serial, but it can cause problems with driving servos since they're using PWM from the same timer. Part 3 - Only using one Micro serial portīart also states, " If you plan to use both servo output and sensor data in your sketch, your should use two different UART ports on your Arduino board." Unfortunately, the ESP8266 only has the one hardware serial port. I'm assuming the diode eliminates signal coming from the receiver going to the TX2 line, but allows the Arduino to send out data over this line to the receiver. The one wire from the receiver's sensor side (far left yellow wire) is split with one going to RX2 and with a diode going to TX2. If I understand it correctly, the one wire from the receiver's servo side (far right yellow wire) is going to RX1 of the Arduino. ![]()
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