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Resin.io and the OpenPi

Introduction

Following on from a previous post on Using Redin.io with Node-RED I have been given a Wireless Things OpenPi device. This is based on the Raspberry Pi Compute Module and hence is a different beast to put software on compared to the regular Raspberry Pi models. The big difference here is that there is […]

Oxford Flood Network Sensor build

These are the first draft of the detailed build instructions for the V3 Oxford Flood Network river level sensor. The sensor uses an ultrasonic transceiver measure the distance from the sensor to the water. The changes in the water level are registered as changes in the distance measured. This can then be used to calculate […]

Remote controlled LED Kitchen lights

Introduction

Over the Christmas and New year holiday I’ve been doing a little kitchen refurbishment. This included the usual repaint and replacement of cabinet doors and handles. As an extra I decided to add some additional lighting above the cabinets to illuminate the ceiling. This is achieved using a more than 5m of 12V RGB […]

Over The Air Hackday challenge

I recently attended the Over The Air mobile development conference at the historic Bletchley Park, Home of the Codebreakers. This was a superb event including talks and hackday challenges covering a variety of categories. The challenge lasted just over 24 hours and in this time teams and individuals had to come up with something that […]

Programming Ciseco SRF LLAP Firmware

I’ve been using a number of Ciseco SRF Radio modules recently, including designing my own PCBs to produce temperature sensors and button sensors. The firmware used is for the XRF range of devices, but as they use the same chip, the firmware will mostly work. There are one or two exceptions, plus the fact the […]

Using Node-Red with Ciseco LLAP devices

I’ve been using the Ciseco wireless modules for a while now and after seeing Node-Red I wanted to use the Ciseco modules as both an input and output to the nodes. This post describes how to setup the Serial In and Serial Out nodes to use either the USB SRF Stick or the XRF and […]

Simple Wireless Display using Ciseco RFu-328

The Idea

For a while I’ve been tinkering with the Ciseco RFu-328 Arduino compatible wireless module but hadn’t done much with one. I’d obtained a pair of 1.8″ SPI TFT displays via an eBay seller in China that I had previously used with Arduino and mbed modules. The displays are driven using the Adafruit ST7735 […]

Custom PCBs for Ciseco SRF Wireless modules

After my earlier experience of designing and having manufactured my own PCBs, I found I’d like to do more. This time using the Ciseco SRF surface mount wireless module. The company provide the EagleCAD schematic and PCB footprint for the module so it is a case of building the PCB around these. I did a […]