ElecFreaks
Octopus LM35 Analog Temperature Brick
The Octopus LM35 Analog Temperature Brick is a plug-and-play temperature sensor module based on the TI LM35D precision centigrade temperature sensor. The LM3...
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The Octopus LM35 Analog Temperature Brick is a plug-and-play temperature sensor module based on the TI LM35D precision centigrade temperature sensor. The LM35 outputs a voltage linearly proportional to temperature (10 mV/°C), making it easy to read with any microcontroller's analog input — no calibration or complex interfacing required.
Part of the ElecFreaks Octopus series, it features a standard 3-pin connector for simple connection to Arduino, micro:bit, and other microcontroller boards.
Key Features
- LM35D Precision Sensor – Calibrated directly in Celsius with 10 mV/°C linear output
- ±0.5 °C Accuracy – At 25 °C (±0.75 °C over full range)
- Wide Temperature Range – −55 °C to +150 °C
- Ultra-Low Power – Only 60 µA current draw with <0.1 °C self-heating in still air
- Analog Output – Simple voltage reading, no digital protocol needed
- 3-Pin Octopus Interface – Signal, VCC, GND for plug-and-play connection
Specifications
- Sensor IC: TI LM35D
- Output Scale: 10 mV/°C (linear)
- Accuracy: ±0.5 °C at 25 °C
- Temperature Range: −55 °C to +150 °C
- Supply Voltage: 5 V
- Current Draw: 60 µA
- Pinout: S (Signal), V (VCC), G (GND)
- Size: 19 × 27 mm
Ideal For
- Arduino and micro:bit temperature monitoring projects
- Environmental and weather station builds
- STEM education and classroom experiments
- Simple analog temperature logging
Package Contents
- 1× Octopus LM35 Analog Temperature Brick
Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- 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.
- VCC
- VCC is the positive power-supply connection on a chip or module. Connecting it to the correct supply voltage is needed for the part to power on and helps avoid damaging the electronics.
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