Arduino rtty transmitter
The two LEDs on the Pro Mini will be also be removed as they just waste power. This tracker is being built for a Pico balloon and as we are going to power it direct from 2 x AAA Lithium batteries (3V), we will need to remove the regulator from the Pro Mini. The design is an improvement on a previous flight tested version. You can however fit a BME280 or BMP280 I2C sensor if you wish. The software uses a few internal processor tricks to read the battery voltage and temperature without needing any additional components. The tracker and receiver software implement a command and control interface so that most all of the tracker settings, frequency, LoRa® settings, RTTY, frequency of transmissions, power saving etc, can be changed remotely whilst in flight. The LoRa® receiver is a much simpler set-up and can be just another tracker transmitter board or a low cost ATMEGA2560 base and DRF1278F\RFM98 shield. There are not many parts we need for the tracker Īrduino Pro Mini 3.3v 8Mhz Dorji DRF1278F (or Hope RFM98) 2 x AAA Lithium Batteries Ublox MAX8Q GPS Tracker and GPS PCBs 0.1” and 0.05” pin headers Ernie Ball Custom Gauge 13 Guitar String Bits of wireįSK RTTY would normally be received on a SDR type radio dongle or other HAM radio set-up. Long Distance Tracking and Monitoring with LoRa® Line of sight LoRa® reception ground to balloon will be 250-450km, depending on the altitude of the balloon.Ī general introduction to LoRa® tracking is here
![arduino rtty transmitter arduino rtty transmitter](https://ukhas.org.uk/_media/guides:ntx2_1_47k.png)
The tracker operates in the UK license exempt 434Mhz region at 10mW power output. The tracker will send back its location using LoRa® and FSK RTTY. This balloon tracker is suitable for both small Pico (foil party type) balloons and the larger latex balloons. The tracker is powered by 2 x AAA Lithium batteries which will last in LoRa® only transmission mode for around 25 days, half that with FSK RTTY transmissions enabled.
![arduino rtty transmitter arduino rtty transmitter](https://i.ytimg.com/vi/bugO7qYc8Po/maxresdefault.jpg)
#ARDUINO RTTY TRANSMITTER HOW TO#
Today I am going show you how to build a low cost and low component count LoRa® high altitude balloon tracker.