bigcorvus,Arthur Jordan,github

2-channel-biopotential-amp

A small general purpose biopotential amplifier for ECG/EEG/EMG measurements. Connects to any ADC.

adafruit-st7735-library

This is a library for the Adafruit 1.8" SPI display http://www.adafruit.com/products/358 and http://www.adafruit.com/products/618

The SAMD21-based feather adalogger with a different voltage regulator. It uses a TPS63001 synchronous buck boost chip to be able to use LiFePO4 batteries and still have a steady 3.3v. Another advantage is that more capacity can be squeezed out of LiPos, still maintaining a stable 3.3V rail.

arduinozerobluetoothhidstick

Yet another keystroke injector based on the Arduino Zero/Feather M0 and the HC-05 Bluetooth module

attiny84breakout

Small breakout board for the Attiny84 in a QFN package

attiny85_breakout

This tiny Attiny85 breakout board comes in handy in many small projects. It's programmed via ICSP. No need for bootloader hassle.

bl6280

The BL6280 is a controller for capacitive touch screens usually found on dirt-cheap chinese U80 "Smartwatches".

colormemlcd

Arduino library for the LPM013M126A 176x176 Japan Display Color memory LCD found inside the SMA-Q2 / SMA-TIME smartwatch.

dw01_lipo_protection_circuit

These are ubiquitous, but what if you want to incorporate them into your own designs?

e-paper-breakout

A small universal e-paper breakout board for 24pin FPC EPD modules based on a standard schematic. Includes casellations for easy integration and a high side switch for complete power disconnect otion.

esp32-pico-d4-eagle-library

nice ESP32-PICO-D4 Eagle Library

galvanicskinresponsemeter

Measures changes in skin conductance, outputs analog voltage. Based on the "Truth Meter" by Makezine.

kl05z_bluetooth_shield

A shield to plug on top of the KL05Z breakout board. Uses the HC05 bluetooth module. This is also used in my biosignal amplifier.

lithium-charger-and-ldo

This is a circuit that is used very often. It features a MCP73831 lithium charging IC capable of charging currents up to 500mA and a generic SOT23-5 LDO. I chose ultra low quiescent current mudels such as XC6215 in the 3.3V variant so the circuit can provide 3.3V all the time and last for ages

lora-ble-relay-v2

second version of the nRF52840 and SX126x-based communication device intended to run Meshtastic

lora-qwerty-communicator

A tidy and feature-packed LORA QWERTY communication device based on a Blackberry Q10 keyboard, a nRF52840 and a 2.7'' Sharp Memory LCD

mkl05z_breakout

breakout board for the MKL05Z32VFM4 Corte M0 microcontroller by Freescale.

neurowing

Feather wing that carries a 2ch bioamplifier board, a HC-05 bluetooth 2 module and some nice little features.

nrf24l01_promini_adapter

adapter board for tiny nrf42l01+ transceiver boards

nrf52832-breakout

breakout board for the CDSENET E73-2G4M04S1B module

nrf52840-breakout

nrf52840 breakout board

openbci_bluetooth2adapter

An adapter board for the OpenBCI 32bit V3 board (Cyton) that enables higher data/sampling rates and eliminates the need for a USB dongle.

openbci_wired_usb

Modify OpenBCI for use via a wired USB connection. Enables increased sample rates.

pah8002

Optical heart rate monitor found in the SMA-Q2 smartwatch.

pcf8574_i2c_bargraph

A small LED bar graph using the PCF8574 I2C port expander (TSSOP package)

physio

A versatile wireless monitoring device that combines ECG, impedance pneumography, photoplethysmography, SPO2 calculation, galvanic skin response, NIBP wrist measurement as well as well as body temperature measurement in one wearable.

plesseyepic_carrierboard

Carrier board for PLESSEY EPIC capacitive electrodes in QFN packages. These active electrodes can be used for capacitive ECG/EEG/EMG.

powermanager

Small power manager PCB based on a previously designed charger+LDO board. This new version has additional features: MCU-controlled power latching using a pushbutton and a fuel gauge with current sensing capability

pulsesensor-for-sma-q2

The Pulse Sensor from https://pulsesensor.com re-designed to be made on a tiny flex PCB to replace the HR sensor of the SMA-Q2 watch.

retina-display-edp-adapter-for-up-board

This project contains the design files for an eDP adapter and backlight driver for ipad 3 retina displays. A .brd file for a connector for CN31 is included too which can be manufactured by OSH Park flex service and costs next to nothing.

bigcorvus Goto Github PK

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