Shared Projects

The original design was done by Adrian West

here is the original post Here the source files Here

Best to go to his main website if you want to purchase one to support him

https://github.com/FujiNetWIFI/fujinet-hardware

Nice combination of short-range (0 - 10 cm, VL6180) and long-range (4 - 400 cm, VL53L1) ranging sensors both using time-of-flight. Intended to mount onto the Katydid wearable IoT platform.

Max1873 Laptop Battery Charge Controller with ATTiny85 Supervisor and Turn on/off digital latch

DC High Side Switch v1.1 - Should use 2oz Board

Uses low voltage NMOS to switch higher voltage PMOS so this is microcontroller friendly

30V 2.3A Max (higher depending on gate voltage and maybe small heatsink plastered to MOSFET package) Uses DMG6602SVTQ-7 P&N MOSFET in TSOT26-6 Package for switching

C1 = 10uF Tantalum Capacitor 1005 (2512)

IC1 = DMG6602SVTQ-7 (P&N MOSFET TSOT26-6)

R1 = 150 Ohm Resistor 0805

R2 = 100k Ohm Resistor 0805

R3 = 150 Ohm Resistor 0805

R4 = 33k Ohm Resistor 0805

R1 & R3 are protection (can go as low as 20 ohm). R2 is a pulldown to guarantee circuit is off if signal is left floating (keep high to reduce current draw and keep signal speed high). R4 limits amount of current flowing through NMOS (keep high to reduce current draw and keep signal speed high). Adjust resistors as needed. C1 is optional but is highly suggested to prevent voltage fluctuations especially if used in PWM application. Connectors are 2.54mm breadboard friendly. PWM speed is limited by R1 and gate capacitance. Use gate driver on signal pin if PWM speed exceeds microcontroller’s IO current/voltage capability.

Uses the following switch:

https://www.aliexpress.com/item/32951795016.html

Jumper Board for Download Station R1 - RNF18FTD10K0 R2-R3 - RNF18FTD15K0 (1) Contacts Molex 0039000038 (1) Connector Molex 0039012040 20 Gage Wire Heat Shrink

More information here: https://hackaday.io/project/168448

XBee + PropellerMini WS2812 Controller

This version is untested.

Simple carrier board for E28 12, 20 and 27 dBm modules

Four channel second order filter based on LM324

This board was developed by the VoronDesign community.

Original and uptodate version here: https://github.com/VoronDesign/Voron-Hardware/tree/master/V0_Display The board has:

STM32F042F6P6 MCU with internal oscillator
SWD header for easy debugging (not populated by default)
Dual USB port (Vertical or Horizontal) with breakout pin header for USB header
I2C Screen connections for 1.3" display with jumpers on back for slecting which pins (1 or 2) are power and ground
EN11-style click encoder support
Reset/kill button
3 GPIO pin header
1 on-board Neopixel with data line broken out for expansion

In addition to the PCB and SMD parts (see BOM), you will need:

Encoder Amazon/DigiKey
Kill and Reset Switch 6mm Tactile buttons 4.3mm Tall
An OLED display 1.3"
Pin Header Assortment Male Dupont-Style and/or JST-XH Style (Can be nice for USB as it's polorized)

Optionally you can get:

Neopixels or look on ebay for bare 5050 Neopixels
Micro USB port (Horizontal Molex 105017-0001 or equivalent Amazon) or (Vertical Molex 105017-0001)