Adafruit
Adafruit TMP235 - Plug-and-Play STEMMA Analog Temperature Sensor - TMP235
The Adafruit TMP235 is a plug-and-play analog temperature sensor with a 3-pin JST PH (STEMMA) connector. Unlike I2C sensors, this one outputs a simple analog...
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The Adafruit TMP235 is a plug-and-play analog temperature sensor with a 3-pin JST PH (STEMMA) connector. Unlike I2C sensors, this one outputs a simple analog voltage proportional to temperature — just connect it to any microcontroller with an analog input and read the value. No libraries or complex configuration required.
The sensor measures from –50°C to +125°C, outputting 0V at –50°C and 1.75V at +125°C. Converting to temperature is straightforward: Temp °C = 100 × (reading in V) – 50. It runs on 3V to 5V and connects via any 3-pin JST PH cable — red to power, black to ground, white to analog input.
Key Features
- Analog Output – Simple voltage output proportional to temperature, no libraries needed
- –50°C to +125°C Range – 0V at –50°C, 1.75V at +125°C
- 3-Pin JST PH (STEMMA) Connector – Plug-and-play connection with compatible cables
- 3V to 5V Operation – Compatible with a wide range of microcontrollers
- Easy Calculation – Temp °C = 100 × (voltage) – 50
Ideal For
- Simple temperature monitoring projects
- Quick prototyping with analog inputs
- Upgrading from the TMP36 with a plug-and-play connector
- Projects where I2C is unavailable or unnecessary
Package Contents
- 1× Adafruit TMP235 Analog Temperature Sensor (with JST PH connector)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- JST PH
- A small keyed plug-and-socket connector with 2 mm pin spacing, often used for low-power electronics connections. You need the correct JST PH cable, and its current rating limits how much power should be passed through it.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- pH
- A measure of how acidic or alkaline a liquid is, on a scale where 7 is neutral. For a water monitoring kit, pH tells you about water chemistry and whether the included probe matches the range and accuracy your project needs.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
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tmp36 temperature sensor
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