ELECTRONICLE

I am no longer using Blogger. You can find my new Blog by going to TheArduinoGuy.org or by clicking HERE. See you there. Mike...

In an attempt to increase battery life further I've now got the HTU21D humidity and temperature sensor powered by a digital pin from the ATMega328p. In code the sensor is powered up and then back down again in-between reads in an effort to squeeze...

I've had the wireless sensor node with sleep functions transmitting every two seconds for a week now to see how fast or slow the power loss was. After about 5 days the battery lost 1 volt which is more than expected. After reviewing the code it would...

Today I decided to change from using the Jeelib library for the RFM69 and instead i've started using the RFM69 library from LowPowerLabs. Not only is it easier to use than the Jeelib library, but it is optimised for using the RFM69 whereas the Jeelib...

I've made some great progress with the sensor node project over the last two days. After finally getting around the problems I was having with the software bugs and the SPI restrictions I settled on the circuit you can see on the left. This is a...

If you've been following the blog lately you would have read about the issues I had with transmitting data packets over a wireless netwrok between two Arduinos using an RFM69CW radio transceiver module. A quick recap - I first had lost packets and...

I have no idea why but my experiments with the RFM69CW have descended into chaos and frustration. At first I had the units talking to each other and sending out test packets for nearly 24 hours with no issue. Then I started to modify my code and...

It turns out that all of the CRC errors and the packet loss I was experiencing was nothing to do with interference at all. It was a bug in the library! After contacting the guys on the Jeelib Cafe forum I was made aware that the CRC errors was a...

Over the last few days I've had two RFM69CW radio modules hooked up to two Arduino Uno's. They both have correct length 1/4 wave antenna and I've been running tests sending data from one unit to another. Seems like a simple test and yet I have had...

I've been playing around with  RFM69CW radio tx/rx modules lately for an environmental sensor node monitoring project. Using the Jeelibs RFM12 library I was trying to get the Arduino Yun to talk to and configure the device over SPI to no avail....