Making Of …

Production of the LongRa boards for exhibition at the Maker Faire Hannover

A self-constructed placement machine allows producing LongRa boards at home:

The first batch of equipped boards:

Test stand production:

The self-constructed component holder and the test stand. Having a laser cutter in the workshop comes in quite handy:

The test stand. It allows testing the conductive traces of the finished boards. In addition, a test software proves the proper function (MCU, GPIOs, external ports, external monitor, USB, and power supply):

The converted reflow oven, with external control, and probe within the oven. An external, Arduino based control provides for the optimal temperature curve. The basis for faultless reflow soldering:

The fine SMD soldering joints are checked under a stereomicroscope and fixed, if necessary:

A final, independent inspection, and installation of the RadioShuttle software. PS: Each odd/even pair of device numbers (e.g. 15/16) are programmed as node and station (server). Sending and receiving messages can be tested without the need to install any software. Insert the batteries and let it run!