Tellurian’s 433 Mhz Telemetry Modules
[http://www.tellurian.ca/resources/RF_819.jpg]
[http://www.tellurian.ca/resources/i2c_RF.hex]
[http://store.qkits.com/category.cfm/RF]
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[./rf24pgpag.html]
[http://www.tellurian.ca/resources/i2c_rf.c]
To the left is the 433 Mhz Rx device (upper), and Tx device (lower), above is the 433 Mhz Rf transmitter module I made for my TAZ robot. It interfaces with TAZ via I2C bus as an I2C slave device. All of the bit banging and critical timing is done by the PIC CPU. TAZ only fires off a data packet to an I2C address and it is done, the PIC takes over from there. This is a very simple module to build, the coding can be tricky if you have no experience with microcontrollers. The code I wrote for it will make it act as either a transmitter or a receiver. Here is the code, the schematics, and programmable binary (hex format) if you want to use them. A good source for the devices is QKits from Kingston Ontario ($16 / pair). This is great for simplex operation, for duplex (or simplex too) see the 2.4 Ghz module.
This is the receiver unit based on the 433 Mhz receiver device. It displays the packet data received from TAZ.
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