I’m cleaning off my workbench. These are parts for which I have no planned projects. Maybe they’re useful to you?
All this stuff is either completely unused, or lightly used by me for testing.
If you want a bunch of stuff, then prices are very much negotiable!
Lorawan mapper node
In the tupperware is an older Rasbperry Pi with SD card. The Pi has this GPS & Lorawan hat. The Pi is currently configured to send its current GPS coordinates over Lorawan to TTN. See this other thread for more information.
Adafruit RFM95W Lorawan Node
This can be connected to a microcontroller to send stuff over lorawan.
These can measure the rate of liquid flow. They send pulses to a microcontroller. You count the pulses to know how much liquid has flowed.
$15 CAD (2 available)
$7.00 CAD (3 available)
$5 (1 available)
LCD Character Displays
16 columns, 2 rows of characters. Easy to drive from Arduinos and such.
$2 CAD (4 available)
LCD Character Displays “I2C Backpacks”
These solder directly to the character displays, and let you drive them with 4 wires instead of 7 wires using the I2C protocol. Also very easy to use with Arduino.
$1 CAD (SOLD OUT)
$2 CAD (3 available)
Waterproof White LED strips
24V, brite white, 5m in a roll
$10 CAD (1 available)
Spring loaded limit switches
$2 CAD each, 3 available (2 with rollers, 1 springy).
1m long - $2 (5 available)
3m long - $3 (1 available)