Tag Archives: Logger

ESP8266 (ESP-03) Based Ultra Low Power Weather Logger

Yet another ESP8266 (ESP-03) based ultra low power weather logger with 4 sensors.

Features

  • Working with two AA battery
  • Ultra low power consumption
  • 4 sensors and 6 measurements:
  • HDC1080 – Temperature & Humidity
  • LPS25HB – Pressure
  • VEML6070 – Ultraviolet Index
  • TSL2561 – Ambient & Infrared
  • Built-in 3.3v Boost Converter
  • TPL5111 System Timer (20 mins update interval, can be customized via resistors)
  • Battery voltage monitor
  • UART port for programming & debugging

ESP8266 (ESP-03) Based Ultra Low Power Weather Logger – [Link]

Pokit – Multimeter, Oscilloscope & Logger in your pocket

Pokit – Multimeter, Oscilloscope & Logger in your pocket – [Link]

Designing a simple and cheap temperature logger

pickandplace.wordpress.com writes:

I started with making the TMP102 temperature sensor work. Nothing to say in particular, it’s just an other I2C-small-package-sensor. Or rather SMBus, but apart from the minimum speed clock requirements on the SMBus, the two protocols are alike.

Designing a simple and cheap temperature logger – [Link]

Portable GPS Data Logger

glg2

elm-chan.org has build a portable GPS logger based on ATMega328 mcu:

I have built a GPS Logger and it works very well to trace the drove route for two years. By the way, the navigation solution computed by GPS receiver itself has an excellent accuracy without DGPS because an intentional offset added by US goverment has been stopped several years ago. The position error seems to be some meters under clear sky. It is a suffcient accuracy to trace the movement of walk. However that GPS logger was designed for only car use so that I re-designed a portable one.

Portable GPS Data Logger – [Link]

ESP8266 + Attiny85 + DHT22 Temperature/Humidity Logger

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by guibom @ github.com:

Basic ESP8266 + Attiny85 + DHT22 Temperature and Humidity logger. I’ve made this to experiment a bit with the ESP8266 wifi module, and hopefully make a remote sensor that posts the data to my server.

I wrote the code to work with both an atmega328 and a attiny85. The mcu sleeps in between readings, consuming about 35uA while powered down (the ESP module, even when chip-disabled, is responsable for about 80% of that).

The UDP messages are very specific to my use case; I have a node-red UDP listener that receives JSON strings from the logger and forward them as MQTT messages. But it should be very easy to change it to send whatever you might need.

ESP8266 + Attiny85 + DHT22 Temperature/Humidity Logger – [Link]

Teensy GPS Logger redesigned in smaller version

teensy_vsmaller-3

The last and final design, the Teensy and GPS is directly powered from 3.7v li-on batt. Arduino code and pcb layout (ARES) available.

Teensy GPS Logger redesigned in smaller version – [Link]