Giulia GuglielmiGiulia Guglielmi
Powering My Wemos Soil-Moisture Sensor with Solar Energy
How I sized a small solar power system for a Wemos D1 mini soil-moisture sensor, from the energy budget to the battery, charger, and boost converter.
5 min
Measuring Wemos Power Consumption and Debugging Deep Sleep
How I measured a Wemos D1 mini sensor's active cycle and deep-sleep current with a USB power meter and multimeter, then traced a power-bank shutdown problem.
7 min
Wemos Soil-Moisture Sensor: from Wiring to ThingSpeak
Build a Wemos D1 Mini soil-moisture monitor: wire and calibrate a capacitive sensor, convert ADC readings, and send data and alerts through ThingSpeak.
4 min
What's Inside a .txt File? ASCII, UTF-8, and Mojibake
Why a saved text file sometimes arrives as garbage like “è” or “’”, and how ASCII, Windows-1252, and UTF-8 decide what your bytes actually mean.
5 min