Coert Vonk

OPNpool. Integrates the functionality of a Pentair pool controller into the smart home using ESP32 SoC.

arduino-SSD1322. Arduino library for 256x64 OLED ER-OLED032-1 (SSD1322 driver)

FPGA_SPI. Connecting FPGA and Arduino using SPI.

ESP32_factory-ble-prov. Reusable ESP-IDF component to simplify provisioning using BLE.

BLEscan. ESP32 code to advertise as BLE iBeacon, or scan for iBeacon advertisements and reports them using MQTT. Used for research in COVID-19 contact tracing.

FPGAmath. Verilog HDL implementations of adders/subtractor, multiplier, divider and square root. As well as HTML simulations.

CALalarm. ESP32 OLED alarm clock that syncs with Google Calendar.

ESP32_coredump-to-server. Reusable ESP-IDF component: Forward core dumps on deployed ESP32 devices.

hp41-focal. HP-41 calculator focal programs for math operations.

OPNpool_meets_ESPHome. Integrates the functionality of a Pentair pool controller with Home Assistant using ESP32 SoC.

gas-sheets-merge. Combines the information from two Google Sheets.

arduino-rotary_encoder. Driver for Rotary Encoder on Arduino 101 (and other boards with sufficient IRQs).

ESP32_wifi-connect. Reusable ESP-IDF module for reliable Wi-Fi connect (and if necessary reconnect)

gas-sheets-project_role_alloc. Create project role allocation pivot table based on projects names, users and their roles.

ESP32_ota-update-task. Reusable ESP-IDF component: RTOS task to pull over-the-air updates for ESP32.

esp8266-fatal. Saves exception details and stack trace anytime the ESP8266 crashes.

ESP32_factory-reset-task. Reusable ESP-IDF component: RTOS task to honor factory reset button for ESP32.

nodejs-wikitree_biography. Imports a GEDCOM to write biographies, and helps you in applying them to corresponding WikiTree profiles.

vscode-starters. Getting started with Visual Studio Code

esphome-config. ESP IoT Devices with ESPHome Firmware