IoT enabled, low power, ultra compact sensor hub with ESP8266 can measure temperature, humidity, pressure, ultraviolet and ambient light.Designed by iohippo in Turkey
What is it? ULP Weather Logger is a WiFi IoT device that has 4 sensors with 6 measurements. Works with two AA batteries. Thanks to its compact design, you can place it anywhere you want. Manual upda…Read More…
ULP Weather Logger is a WiFi IoT device that has 4 sensors with 6 measurements. Works with two AA batteries. Thanks to its compact design, you can place it anywhere you want.
Manual update by pressing one shot button
This device wakes up and updates at certain intervals. By default, it's every 20 minutes. This can be customizable by changing R3 and R4 resistors. See "Resistors selection" section.
Once you have received, it comes with default sensor test sketch. You need to customize and flash your own sketch once. Arduino and Blynk example codes provided on Github repository.
You need to customize these lines in WeatherLoggerBlynkVirtualWrite.ino with Arduino IDE:
Press reset button.
If you uncommented DEBUG flag on your sketch, you can monitor serial port to see what's happening when you press ONE SHOT button.
I recommend to use two AA alkaline, NiMH or NiCD batteries.
It depends on a few things. e.g., update frequency, distance between WiFi router, internet speed etc. In normal conditions, one update takes 1-1.5 seconds. I don't have precise testing instrument, but I have reached 5 months battery life during my real life tests with two 2400mAh NiMH batteries.
|Update interval||Daily update count||Battery life|
|20 mins||72 updates/day||~5 Months*|
|40 mins||36 updates/day||~10 Months|
|60 mins||24 updates/day||~15 Months|
(*) Tested with 2*2400mAh Ni-MH batteries.
If you want to change update interval, (by default, it's 20 minutes) replacing R3 and R4 is necessary. Please refer to the table* below.
(*) from datasheet of TPL5111
Measured from JP1.
Hardware and software are 100% open source. Design files, schematics and codes are on Github repository.
There are no issues currently reported.
I'll ship all the boards with tracking number. Let me know if there is no shipping option to your country. I'll have a look.
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Adrian | Aug. 6, 2018
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