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Category Archives: Projects
Oregon Scientific version 2.1 & 3.0 RF protocol
The RF transmissions use on-off-keying (OOK) with Manchester coding on a carrier frequency of 433.92MHz. See the Wikipedia entry on Manchester coding for more information or consult a basic text on digital RF communications. All OS protocol versions use the … Continue reading
Posted in 433.92 MHz, Arduino, oregon scientific rf protocols, Projects
Tagged Arduino, oregon scientific rf protocols
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RF Oregon Scientific version 1.0 Protocol Samples
A number of samples are available to help describe the protocol and structure of messages. The version 1.0 preamble is shown below. The clock rate used to generate the x-axis was 342Hz. The integer values on the horizontal axis are … Continue reading
Posted in 433.92 MHz, Arduino, oregon scientific rf protocols, Projects, RF
Tagged Arduino, oregon scientific protocol, temperature sensors, wireless
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New developments USB – RS485
Well, it’s been a while since the last update so here it goes: we are preparing a few products which will be available in the shop, and as always the people that built them know them better. We’ll have … Continue reading
Tinkering with Arduino
Well, about time for me to try and understand what is going on inside all these things making use of the 433 MHz, kind of hard not knowing a lot about programming and stuff Thanks God for the multitude of … Continue reading