Waveshare has recently released the ESP32-S3 2.06-inch AMOLED Touch, an ESP32-S3-based watch devkit with Wi-Fi 4, Bluetooth 5 ...

Unexpected Maker has recently released the Series, a lineup of four new ESP32-S3 development boards: the EdgeS3, TinyS3, ...

How it works is simple: you can track devices using Bluetooth on the ESP32, and through a combination of presence and signal strength, you can define a sensor that changes to an "on" state when your ...

Well, if my kid self went forward in time and saw this amazing ESP-32 project that enhances a Hot Wheels track with a few nerdy extras, I don't think he'd ever be satisfied with w ...

When testing sensors in upstream bioprocessing, electrochemical sensors were more accurate than optical pH sensors, but less accurate as a batch of cells aged.

The base setup for this pH measurement system is located in a room with approximate dimensions of 9.29 square metre.

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… ...

Measuring the pH of substances gives us vital clues about the world around us, such as identifying contaminated water or checking the toxicity of medical or cosmetic products.

In this new pH sensor, fluid samples run through a series of microfluidic channels and over three highly sensitive electrodes made out of light-responsive layered materials and metals.

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.

The problem 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 ...