If you're looking to take the plunge into the world of ESP32 devices, then here's a basic overview of what you need to know.

Review of ThinkNode M1 and M2 LoRa nodes, and getting started guide for Meshtastic off-grid messaging and GPS sharing ...

Although some organisms can survive and even prosper in a wider pH range than others, bioprocessing’s popular Chinese hamster ovary (CHO) cells grow the best at a pH of 7.0–7.2.

The ESP32 is employed in deep sleep mode, and with the assistance of a touch sensor, the pH of the hydroponic solution can be measured with a simple touch. This touch sensor acts as an interrupt, ...

For our next installment, I have a lovely and daring PCB submitted by one of our readers, [Vas]. This is an ESP32-S3 board that also has an onboard round TFT display, very similar to the one we use… ...

More information: Weiyu Xiao et al, Iridium oxide and cobalt hydroxide microfluidic-based potentiometric pH sensor, Microchimica Acta (2023). DOI: 10.1007/s00604-023-06035-z ...

Nov 03, 2023 Chemists develop new sensor for microvolume pH detection (Nanowerk News) Measuring the pH of substances gives us vital clues about the world around us, such as identifying contaminated ...

An ESP32 reads the sensors and sends out the data through WiFi. [Stephen] programmed the ESP32 in MicroPython, using an MQTT driver to connect it to Home Assistant.

I am using ESPHome and an ESP32 device to measure pH of water with A/D converter. I convert the measured voltage (see yaml snippet below) to a pH value with state_class: "measurement" and ...