Putting yesterday's bits together. I have the relay gaffer taped into a pop bottle and the pump sitting in a 25 litre bucket. I have checked that the pump runs from energising the relay. All good.
Time to write to code for the NXP. First off for sensor testing purposes is to get the TCP / IP running. The simple UDP sender already found a checksum bug in the supplied library. Oh well, at least the packets still show up in Wireshark. Let's hope TCPSERVER on Linux will ignore it.
Off to Wickes / B&Q now to find some plumbing bits.
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