![]() Some tutorials for SoftwareSerial suggest explicitly declaring the TX pins to be output.(b)Perhaps whatever is listening to 'txPin' is picking up noise, making it do something unexpected? That's very unexpected.Most Arduino documentation says things like'Arduino (Atmega) pins default to inputs, so they don't need to be explicitly declared as inputs with pinMode().' (a) That doesn't sound right.When a UART is not transmitting any data, it stays in the idle '1' state.I expected the wires connected to the Arduino to be so-called RS232TTL levels of +5V in the '1' state and close to GND in the '0' state.(d)When the UART is transmitting lots of data, a multimeter typically shows some sort of average voltage between the '1' state and the '0' state, bouncing around 2 V to 4 V.Perhaps a power or data line got disconnected or wired up wrong? I tried a voltmeter over GND and DI10 and while measuring it showed 0V. Kfuglsang kfuglsang $endgroup$ 5 Answers $begingroup$ Doing so seems to conflict between SoftwareSerial and Serial, since the available() function rapidly increases and thus I have a lot of 0's printed (given no data was actually transmitted, but available() returned 63 - the maximum of the receive buffer).Īs a side note, if I remove the pinMode(rxPin, INPUT) line then nothing is ever received (and rf.available() is always 0). When I receive a byte from the RF receiver, I am simply writing it to the Serial (so that I can see it on my PC in the serial monitor). See .uk/acatalog/AM_Super-heterodyne_Receiver.html I have a RF receiver connected to the Arduino on the DI10 port using the SoftwareSerial library. ![]() I have a very simple setup with an Arduino Uno R3 connected to my Windows 7 圆4 with Arduino 1.0.1. Like its predecessor, TinyGPS, this library provides compact and easy-to-use methods for extracting position, date, time, altitude, speed, and course from consumer GPS devices. TinyGPS is a new Arduino library for parsing NMEA data streams provided by GPS modules. Full-featured GPS/NMEA Parser for Arduino. Arduino Library Softwareserial.h DownloadĪ.NEW.Arduino Softwareserial Library Download.Arduino Softwareserial Library Download For Computer.
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