Handheld Retropie gaming console based on CM3+ and DPI screen.
# Shield fo Raspberry PI zero W. #
# Introduction #
This shield created for moving many digital servos as [LOBOT LX-16A or LOBOT LX15D](www.lobot-robot.com).
# Desing #
This shield included microcontroller stm32f413 and st-link scheme on stm32f103 base. Stm32f413 connected to raspberry connector via SPI, UART and I2C interfaces. You can to use stm32f413 as:
- USB/UART bridge for raspberry cons...
It contains a USB to TTL chip, connect to the Pi UART, you can easily access the terminal; INA219 can help you monitor battery voltage and charge/discharge current; You can mount the SD card reader on your Pi as a NAS; You show some information on the OLED display, such as battery voltage, IP address.
Adopt SW6106 lithium battery charge/discharge IC, support Type-C and Micro-usb power supply, and support charging and discharging.
This projects is a device controlled thru i2C, it has a set of instructions to control two leds, two buzzers and a combination of them.
The device uses an ATTiny85 and it connects to an RaspberryPi to send the commands.
The instruction for the device are:
- 0x00 --> Does nothing
- 0x01 --> All Buzzers ON, All LEDs OFF
- 0x10 --> Al Buzzers OFF, All LEDs ON
- 0x11 --> All Buzzers ON, All LEDs O...
This afforable Geiger Counter that works as standalone device and also can connect to other external devices (like RaspberryPi/Arduino or other GPIO devices) to send the "clicks" thru GPIO interface.
The Arduino code for the Geiger counter is available here:
- Pin D2 --> Arduino interruption
- Pin D7 --> Buzzer
- Pin D8 -->...
This is a Raspberry Pi Zero W hat/shield with USB MIDI input, stereo audio output, 3 user-configurable buttons and OLED display.
To use as an audio card, enable PWM audio output by adding `dtoverlay=pwm-2chan,pin=18,func=2,pin2=13,func2=4` at the end of *config.txt* file.
Remeber that HDMI audio output is the default; use `raspi-config` to force output to 3.5mm audio jack.
If you can't find 47uF...
# Overview #
Time-to-Digital converter plug-on module (shield) for Raspberry Pi B+. The board utilizes a TDC7200 (TI) with a time resolution of ~50ps. The Start/Stop inputs to the TDC can be configured with JP2 from either external signals or coming from the RPi's GPIO5 pin in case a timing signal is present at this pin from another plug-on board on the same RPi. Start and Stop signals can be conf...
Template (PCB and interface symbol) to copy for any kind of HAT designs for Raspberry Pi B+. The PCB contains 6 layers with layer display at the lower edge. The assignment of layers is:
- top: signal, polygon connected to GND
- bottom: signal, polygon connected to GND
- layer 1: inner, signal
- layer 2: inner, polygon VCC
- layer 3: inner, polygon GND
- layer 4: inner, signal
Note: geometry tes...
A design to break out the dual micro HDMI ports out to a panel adjacent to the USB/Ethernet ports.
All traces are length matched on high speed differential signals.
This design has not been tested yet, it is currently in production (04/2020)
This has been deisgned to use the BossCon HDD-M-CN09 micro HDMI board edge connectors. Other types will not fit as they all have slightly varying pin spac...
The [MuonPi Project](http://muonpi.org) utilizes an inexpensive Raspberry Pi B+ plug-on module for particle and nuclear physics detectors aimed for measuring muons from atmospheric showers triggered by high energetic cosmic particles. The goal is to set up a distributed network of these detector stations in order to determine the energy, timing, and eventually the origin of the primary particles....