2 - PCB assembly

[Tony]

Next is the 433 Rx module. Carefully bend the pins before soldering it in, it's ceramic not fibreglass so it will break if not handled carefully:

[Tony]

Finally the movement detector. Solder the 5-pin strip onto the module first - the pins face the same way as the components on the module PCB:





Then solder the module onto the main PCB:



Finally solder the short piece of wire supplied to pad 'A' in the top right corner of the PCB - this is the 433MHz receiver antenna which you'll probably need to trim to approx. 17cm. in length.

[Tony]

Time for the second test - connect the 15V power supply again and switch on - you should have LED1,3 and possibly 4 on, after a few seconds LED4 should go out until movement is detected, then it will light for a couple of seconds, LED3 will flicker but remain on. Current consumption should be very close to 35mA, increasing when a BT connection is established.

Switch on the GPS mouse, once it starts to transmit valid packets (green LED flashing) you should see the yellow LED2 on the PSU board flash once a second as each packet is received. Green LED3 will flicker as each is then retransmitted to the base unit.

Try connecting to the Bluetooth receiver using a smartphone or PC dongle - it'll appear as 'Time Flies' in the device list. The code is '1234'. Sending it a test packet using a serial terminal should cause LED2 to flash, it will also send short messages back for certain events such as when a GPS packet is received.

See the operating instructions - advanced for testing the Bluetooth link.

If any of these fail, check the supply voltages and soldering around the modules.

[Tony]

Last bit of soldering - the PP3 connector. Solder the 2 wires as shown (under FS1 red to +, black to -):





Now jump to Case assembly.