Oak

V1.0

🌳 Measure outdoor distance between 2 keychain holders 🔑

power LiPo
wireless LoRa
sensor GPS, E-Ink
mcu SAMD21E
status ongoing

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Project Attributes
LilyGO TTGO T-Beam developer 2019 USD 25 LoRa: SX1262
battery: 18650
mcu: ESP32
GPS: ublox NEO 6M
Display: OLED SSD136
a LoraWAN GPS tracker developer 2016 LoRa: RFM95
battery: 18650
software: node red
LoRaSensorTile developer 2018 LoRa (with MCU STM32L082): CMWX1ZZABZ-078
mcu: STM32L082
accelerometer: BMA280
pressure sensor: BME280
RGBW light sensor: VEML6040
flash memory: MX25L12835FZNI
GPS Live Tracking developer microcontroller: ESP8266
GPS: u-blox Neo-6M
visualization: Grafana
database: Influx DB
LoRa: SX1278
LoRaWAN GPS Tracker with 9-axis accelerometer-LGT92- 868MHz developer 2020 USD 39.5 microcontroller: STM32L072
LoRa: SX1276 / 1278
battery: 1000mA Li-on
accelerometer: MPU-9250
SAMD21 LoRa Development Board with GPS developer 2018 microcontroller: ATSAMD21E18A-AU
GPS: Quectel L80 GPS module
LoRa: RFM95W
battery: LiOn

LoRa

  1. RFM95W LoRa Module
  2. Adafruit RFM9X schematic and layout
  3. RFM95 Ultra-long Range Transceiver Module/LoRa Module/support 868M frequency from Seeed
  4. RN2483 Low-Power Long Range LoRa Technology Transceiver Module
  5. Murata's CMWX1ZZABZ-078 module
  6. Semtech SX1276 ransceivers feature the LoRa® long range modem
  7. B-L072Z-LRWAN1 LoRa®/Sigfox™ Discovery kit
  8. (Project) Voodoo Sonic LoRaWAN-connected Doll

LoRa Antenna

  1. Testing LoRa Antennas at 915MHz

GPS

  1. Calculate distance between two latitude-longitude points? (Haversine formula)
  2. Haversine formula
  3. Testing out an upcoming STEMMA GPS board for STEMMA SUNDAY
  4. Adafruit Mini GPS PA1010D - UART and I2C - STEMMA QT
  5. Adafruit GPS Arduino firmware
  6. CD-PA1010D GNSS patch antenna module Data Sheet V.02
  7. CDTop Technology PA1010Dv2 (CD-PA1010D2)
  8. NEO-6M GPS Module — An Introduction
  9. GPS Nixie Alarm Clock with Ublox NEO-6M GPS module
  10. Mini GSM/GPRS GPS Breakout SIM808
  11. SIM808 GPS Application Note V1.00
  12. 66-Channel LS20031 GPS Receiver Module (MT3329 Chipset)
  13. Adafruit ultimate GPS with MTK3339 chipset
  14. MEDIATEK - 3329 Datasheet
  15. GSM & GPS Car Diagnosis System with MEDIATEK MT3329
  16. Quectel L30 Compact GPS Module with Super Sensitivity
  17. NEO-7 series u-blox 7 GNSS modules
  18. NEO-6 series Versatile u-blox 6 GPS modules
  19. NEO-6 u-blox 6 GPS Modules Data Sheet
  20. SkyTraq Venus838LPx-T Timing GPS module breakout
  21. Venus838LPx-T 1cm2 Precision Timing GPS Receiver
  22. MAX-7 series u-blox 7 GNSS modules

E-Ink

  1. Waveshare 1.54inch e-Paper Module
  2. Waveshare 200x200, 1.54inch E-Ink raw display panel
  3. Waveshare 200x200, 1.54inch E-Ink raw display panel schematic to module
  4. Waveshare 1.54inch e-Paper Module datasheet

Firmware

  1. Arduino Core for STM32L0 with LoRaWAN connectivity

SPI

  1. How to access multiple SPI interfaces on Arduino
  2. Better SPI BUS design in 3 steps
  3. Serial Peripheral Interface (SPI)

Manufacturing

  1. How to Solder Castellated Mounting Holes