Solar-powered data logger for soil temperature/humidity sensors

Jean-Claude Wippler deb1e95bda fix formatting 1 month ago
fw-logger bab1601fda release 1.1 adds sht21 and dht22 tweaks 2 months ago
fw-recover 7bc4bf5dba minor cleanups 6 months ago
fw-server bab1601fda release 1.1 adds sht21 and dht22 tweaks 2 months ago
hw-pcb d89c4df3dd add readme's 6 months ago
img 305e749d63 switch to PNG iso SVG logo 4 months ago
reference 83d442c20a started writing tech docs 6 months ago
.gitignore d3e2291bdb Ignore KiCAD backup files 7 months ago
README.md deb1e95bda fix formatting 1 month ago
UNLICENSE f3c231fcd8 add notes 7 months ago
manual.md 07471dfea3 add dht22 cable wiring details 6 months ago
techref.md 276666bba9 update documentation to v1.0 6 months ago

README.md

Zelkova Sensor Logger

See the manual for usage details.
The technical reference is called techref.

  • fw-logger/ is the firmware for the STM32F103 µC
  • fw-recover/ is a special build for the STM32F103 in ESP-recovery mode
  • fw-server/ is the firmware for the ESP8266 module
  • hw-pcb/ contains the design files for the custom PCB
  • img/ has some images for use in several documents
  • reference/ has datasheets for the various components

Project design & implementation by JC (firmware) and David (hardware).

Release history

  • v1.0 - 2018-05-31 - First official release.
  • v1.1 - 2018-10-16 - Add support for SHT21 in slot 3, tweak DHT22 timing.