Gemini Two Tube Clock
12
Update #1 (21
st
May 2019)
www.nixology.uk
Headers for BMP280 and Neopixels
Solder the 4 way header for the NeoPixel connections and the 6 way header for
the BMP280 sensor. Both are mounted on the top of the board.
Only three out of the four connections are used for the Neopixels and only four
out of the six connections are used for the BMP280.
BMP280
For testing this can be plugged directly in to the header on the clock PCB though
for better results it could be mounted remotely where it may not be affected so
much by any heat generated by the clock and associated components.
Solder the header pins to the BMP280. Which side you solder the pins to will
depend on your chosen mounting method. This example shows them set for
direct attachment of the BMP280 to the PCB Header. Be sure to align VCC on the
BMP280 with VCC on the PCB.
Turn the board over and solder the following components:
WeMos mounting pins and sockets
Insert the two rows of header pins (that were supplied with the WeMos) into the
PCB ‘long’ end first, leaving the ‘short’ ends for soldering to the WeMos
(
for
location only DO NOT SOLDER
). Put the Wemos on to the two rows of pins
and solder the pins to the Wemos
ONLY
.