Pinned Repositories
at24cxx
Portable, multi-instance AT24CXX EEPROM driver
battery-reg-module
Custom lithium-polymer battery voltage monitor and regulator module
battery-reg-module-fet
Custom lithium-polymer battery voltage monitor and regulator module (N-FET version)
cpld-alu
MAX II CPLD custom ALU with microcontroller interface
data-logger
Custom PCB for battery-powered SD card data logging
demo-drivers
Custom HAL drivers implementation demo
ds3232
Portable, multi-instance driver for DS3232 and DS3231 RTCs
eeprom-at24cxx
Custom driver for AT24CXX EEPROMs
gba-bridge
Gameboy Advance cartridge data read/write to/from SD card
htu21d
Portable, multi-instance driver for HTU21D sensors
johnmgreenwell's Repositories
johnmgreenwell/gba-bridge
Gameboy Advance cartridge data read/write to/from SD card
johnmgreenwell/at24cxx
Portable, multi-instance AT24CXX EEPROM driver
johnmgreenwell/battery-reg-module
Custom lithium-polymer battery voltage monitor and regulator module
johnmgreenwell/battery-reg-module-fet
Custom lithium-polymer battery voltage monitor and regulator module (N-FET version)
johnmgreenwell/cpld-alu
MAX II CPLD custom ALU with microcontroller interface
johnmgreenwell/data-logger
Custom PCB for battery-powered SD card data logging
johnmgreenwell/demo-drivers
Custom HAL drivers implementation demo
johnmgreenwell/ds3232
Portable, multi-instance driver for DS3232 and DS3231 RTCs
johnmgreenwell/eeprom-at24cxx
Custom driver for AT24CXX EEPROMs
johnmgreenwell/htu21d
Portable, multi-instance driver for HTU21D sensors
johnmgreenwell/keypad
Portable, multi-instance driver for matrix keypads
johnmgreenwell/led
Generic, portable, multi-instance LED driver
johnmgreenwell/mcp23008
Portable, multi-instance I2C IO-expander driver
johnmgreenwell/mcp23s08
Portable, multi-instance SPI IO-expander driver
johnmgreenwell/micro-numeric-display
Print data to 7-segment micro-numeric indicator chip with Teensy microcontroller
johnmgreenwell/micro7seg
Portable, multi-instance 7-segment display driver
johnmgreenwell/relay
Generic, portable, multi-instance relay driver
johnmgreenwell/rtc-relay
Bluetooth-controlled time-keeping mains-powered relay switch
johnmgreenwell/shift-register
Generic, portable, multi-instance shift register driver
johnmgreenwell/ssd1306
Portable, multi-instance driver for SSD1306 monochrome 128x64 and 128x32 OLEDs
johnmgreenwell/switch
Generic, portable, multi-instance switch driver
johnmgreenwell/utility-scripts
Miscellaneous scripts for reference