I’m going to try to use my new RFM12B based JeeNode Micro from JeeLabs to talk to a Raspberry Pi equipped with another RFM12B. Although the radio module (and JeeNode) are from JeeLabs, I’m going to connect it to a raspberry pi using an Eve-alpha board I got via the Ciseco kickstarter a while back. […]
Read More…Archive for November, 2013
Command line control of arduino using ino
As we’re going to be programming the arduino via the raspberry pi over ssh, we need a command line tool to talk to the arduino. Luckilly several such ways exist, including make-files from several sources. I chose to use a tool called ino which seems to have packaged up the toolchain in a fairly decent […]
Read More…Setting up a Pi from bare Raspbian to work as a Node-Red controller
Here is a set of instructions to go from bare Raspbian to work as a Node-Red controller and also send text (sms) alerts using a 3G usb dongle. For various reasons I’ve needed to retrace my steps a few times, so here I’ll document them all for my and your convenience. Starting point is a […]
Read More…Using the ACS712 Low Current Sensor
Gareth and I are using ACS712 Low Current Sensors in our Aquaponics project. We’re using them to measure AC current. All we really need them to tell us is whether various pumps are on (and drawing 1/6 of an amp) or off. The raw value you get when you do an analogRead on the pin varies […]
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