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Wideband Lambda / AFR / O2 + EGT + RPM development board — Bluetooth and app
⚠EGT NOT included.
⚠ Carefully check what is an isn`t included in the listing— see the \"in the box\" section.
⚠ The iOS app does more than the Android one. See the table below before you buy.
⚠ Needs an external 12V DC power supply able to handle peaks of 3A.
App, library, examples, technical data and further information are on the manufacturer\'s website — the access code comes in the package.
Three measurements, one board
- Lambda / AFR / O2 — wideband, with an LSU 4.9 sensor
- EGT up to 1000°C (1832°F) — exhaust gas temperature
- RPM — engine speed, measured, not estimated
The other boards in the range measure lambda only. Three readings on the same time base, so they can be compared against each other.
It works without an Arduino
The board has its own microcontroller, so it runs on its own:
- Bluetooth Low Energy works standalone — pair it with the app and read the data straight away
- The optional display connects directly to the board — no Arduino in between
Power it, connect the sensor, and it measures.
The app — iOS, macOS and Android
Free, and this is what each version does today:
iOS / macOS Android Live readings Yes Yes Graphs Yes Not yet Data logging Yes Not yet CSV export Yes Not yet
The iOS version is the more complete one. On Android the board works and shows live readings, but graphs, logging and CSV export are not there yet. If any of those matter to you, check which phone you will be using before you order.
With an Arduino, if you want one
It does not need an Arduino, but it can talk to one. The lambda_d.h library gives your sketch the three readings, so you can use them inside your own project alongside everything else you are already doing.
It is the only board in the range that covers both: a finished instrument on its own, and a data source for a project.
Is this the right one for me?
Plug and play — app and display. Yes. It works on its own. Power it, pair the app, and add the optional display if you want the reading on the board itself. No Arduino anywhere.
Inside an Arduino project. Yes. The lambda_d.h library gives your sketch lambda / AFR / O2, EGT and RPM, alongside whatever else your project is doing.
If all you need is lambda in an Arduino project, the Controlduino Lambda Module 01M11V00 does that for less. This board earns its price when you want EGT, RPM, the app or the display.
Specifications
- Measures: O2 · Lambda · AFR · EGT · RPM
- EGT range: up to 1000°C (1832°F)
- Sensor: LSU 4.9 wideband —included
- Wireless: Bluetooth Low Energy, integrated on the board
- App: iOS, macOS and Android — see table above
- Display: optional, connects directly to the board —included
- Arduino: optional, library lambda_d.h
- Power supply: 12V DC, peaks of 3A — not included
- Model reference: 01D21V00
- Boards designed and made in Spain
In the box
Not included- EGT sensor ()
- Cable or connector for EGT sensor
- Arduino board.
- Case. (The board does not have a case; it is a development board, although it can function as plug-and-play in addition to working with Arduino.)
- Power supply not included.Any 12V DC source that can handle peaks of 3A will work — a bench supply, a car battery or a standard 12V adapter. We do not ship power supplies to the United States
Shipping and support
We ship to the United States only. The item is sent from Spain, dispatched within 3 working day. Estimated delivery: 7 working days.
Import charges. This item ships from Spain. Since the United States ended its de minimis exemption, import duties and customs fees may apply on delivery regardless of the order value. These charges are set by US customs and the carrier, not by us, and are not included in the price shown.
Questions about the app, the display or your sensor? Message us through before you order — we answer.
