Category Archives: Wireless

1.8V or 3.3V ?

Is it better to run CC2650, CC2640, CC1350 or CC1310 SoCs from Texas Instruments keeping in mind ultra low power and utilizing energy harvesting at 1.8V (but consume larger current) or at higher voltages (like 3.3V ) but consume lesser … Continue reading

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Hacking the Rock Crawler – Part 3

AT the end -> A very trivial but important lesson – something that we all assume we know theoretically but might fail to implement practically !!. This is what the 4-bit level shifter  BSS328 module from Adafruit looks like – … Continue reading

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Setting up the transmitter and the receiver

So i am still waiting for the level shifters to come, meanwhile i wrote a code that would form the framework for the codes for the RC car so that i would not have to spend a lot of time … Continue reading

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Hacking the Rock Crawler – Part 2

After soldering the wires this is what we get – Now we have to take care of a big issue – The High logic level for arduino is 5V but the High logic for our chip-on-board is 3.3V, so if … Continue reading

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Hacking a Rock Crawler to run on 27MHz and 2.4GHz using nRF24L01+ transceivers – Part 1

I had this Rock Crawler (from now on rock crawler would be abbreviated as RC) that originally ran on 27MHz. This is NOT a differential drive vehicle, it uses a steering mechanism to turn. In the booklet that i received … Continue reading

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Time comparison between normal TX-RX mode and Auto Ack payloads

If you have read the library properly then you know how the transceivers and the functions that have been developed work i.e what happens in a normal mode where we switch between Rx and Tx mode and how the Auto … Continue reading

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Auto Ack completely fixed

Do check out the next post for a time comparison between Auto Ack mode and normal Tx – Rx switching mode. In my previous post there were some serious issues about the Tx receiving Ack payload only twice before stopping … Continue reading

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Taking input from Processing and transmitting it wirelessly to control a remote set of leds

The nrf library allows us to send only integers , characters , bytes but not Strings objects (you can definitely send character arrays i.e strings). But it is really easy to communicate from Processing to Arduino using String objects because … Continue reading

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