https://www.barbouri.com/2016/07/21/programmable-voltage-reference-v2-12-assembly/#comment-635
License: CC-BY 4.0This is meant to breakout a large 12V or 5V PSU such as from here: https://www.circuitspecialists.com/12-volt-8-amp-power-supply.html
It standardizes on 5.5/2.1mm barrel plugs. You can use multiple of the boards if you need more. To connect to boards, use male to male barrel plugs search term "Male to male dc power 5.5", use extensions if you need them longer, and use adapters if you need different size barrel plugs on output, search term: "multi type 23 or 28 dc power adapter". Fuse is OPTF0078P, digikey number F6094-ND. NOTE: fuse untested in footprint. Need to verify. Mounting holes are M5.
Cleaning up my computer equipment, and needed less PSU clutter.
License: GPL3LED 8x8x8 Cube Arduino
License: CC-BY 4.0Power Delivery Board for Multirotor
License: CC-BY 4.0Need to power a USB device off an ATX power supply? Maybe a screen for that cool briefcase computer you're working on? Well this board is for you.
License: CC-BY-SA 4.0RPi3B+ RAK833 PoE HAT
rev.1.1
Not tested yet, waiting for delivery
This iot_battery_sensor board v1.1 is intended as piggyback/hat for the iot_lora board.
(see: iot_lora_v3)
Power alternatives are: CR2032/2xAAA controlled by TPS61291, TPL5111 and/or TPS22860.
The booster (TPS22860) can be bypassed.
BOM
1 x 10uF
1 x 3,3uH
1 x TPS61291
1 x 22uF
1 x TPS22860
3 x 0.1uF
1 x TPL5111
1 x 56K
1 x 10K
2 x 4K7
2 x pin header 1x1
2 x pin header 1x2
1 x pin header 1x4
1 x pin header 2x7
1 x AAA box (€0.57)
Connections for sensors are:
GPS6MV2, (€4.15)
BME680 (€9.03)
BME280 (€2.67)
BMP280 (€0.72)
BMP180 (€0.58)
MAX44009 (€1.54)
TMP35GT9Z (€1.25)
DS18B20 (€0.80)
ATTENTION: This is version V1.0, not tested yet (is in order). Improvements, suggestions? Let me know!
ATTENTION: Added to version V1.1 are connections for the sensors CCS811 and MAX44009.
License: CC-BY 4.0RPi3B+ iC880A PoE HAT
rev. 1.1
Not tested yet, waiting for delivery
Bare arduino with DS1307 Real time clock.
License: CC-BY 4.0Prototyp of a Digispark Ducky Shield for use as a low cost RubberDucky alternative.
Untested.
Resol VBUS Decoder
License: CC-BY 4.0Prototyp of a Wemos D1 Mini shield for use as an IR booster/repeater.
Untested.
TESEO-LIV3F Breakout Board
rev. 1.1
Breadboard friendly
Tested, works fine
Carvey smartclamptm homebrew PCB enhancement with autoleveling support
License: GPLv3Button board for an arcade controller I'm making. Basically it's a breakout board for an I2C GPIO expander.
License: CC-BY-SA 4.0TPL5110 Breakout Board
ver.1, rev 5
Breadboard friendly
Tested, works fine
RFM95 Breakout Board
rev. 1b
Breadboard friendly
Tested, works fine
LoRaWAN GPS Tracker
rev. 1b
Tested, works fine
TPL5110 Breakout Board
rev. 4
Breadboard friendly
Tested, works fine
The purpose of this board is to solve the mismatch between the encoder logic levels and what the motor controller expects as encoder inputs. The absolute encoder outputs a signal from 0-5V based on the position of the encoder shaft, but the motor controllers expect in a signal that is 0-2V. To make this transformation, we will create a linear voltage divider.
License: CC-BY 4.0This board is made to handle the mismatch between the digital logic voltage level of the Raspberry Pi and the LED matrix. Digital logic is typically at either 3.3V or 5V. The GPIO pins on the Raspberry Pi will output at the 3.3V logic, and the LED matrix is made to read at 5V digital logic levels. In order to have these signals make sense to each other we use a device called a logic shifter, which will take the 3.3V signals and turn them into 5V signals.
License: CC-BY 4.0