Black Lives Matter - Action and Equality.

Reverse Engineering of a Not-so-Secure IoT Device #IoT #InternetOfThings #ReverseEngineering #EE #Wireless @McuOnEclipse

Via McuOnEclipse, when people build “smart things” and “wireless things”, is security a primary consideration? This article focuses on looking at a strange monitoring device found by employees under desks and in meeting rooms, placed there by their employer. What does it do? Erich Styger finds out.

IoT Device attached under a working desk

Looking inside:

The analysis of the board component revealed following components:

  • Microchip RN2483 LoRa module with antenna
  • STM32L031F6P6 ARM Cortex-M0+ microcontroller
  • AMSYS HTU20 I2C humidity/temperature sensor
  • RGB LED indicating connection status
  • Unknown device 8743 (I2C), probably a magnetometer/accelerometer

Using the logo found on the device, a Google name/image search reveals the company behind this device. The examples on the web site shows that these devices are used for office space monitoring.

The law in many countries is very strict if electronic devices are used to monitor a workplace. The information (or lack of information) what a device can and cannot do very likely will cause lots of employee concerns.

The article goes in depth analysing the device, it’s firmware and more to see what it can do and how the lack of security puts people at risk.

Continue reading om


We are angry, frustrated, and in pain because of the violence and murder of Black people by the police because of racism. We are in the fight AGAINST RACISM. George Floyd was murdered, his life stolen. The Adafruit teams have specific actions we’ve done, are doing, and will do together as a company and culture. We are asking the Adafruit community to get involved and share what you are doing. The Adafruit teams will not settle for a hash tag, a Tweet, or an icon change. We will work on real change, and that requires real action and real work together. That is what we will do each day, each month, each year – we will hold ourselves accountable and publish our collective efforts, partnerships, activism, donations, openly and publicly. Our blog and social media platforms will be utilized in actionable ways. Join us and the anti-racist efforts working to end police brutality, reform the criminal justice system, and dismantle the many other forms of systemic racism at work in this country, read more @

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 20,000+ makers on Adafruit’s Discord channels and be part of the community!

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more

CircuitPython – The easiest way to program microcontrollers –

Maker Business — How 3M is able to ramp up production of N95 masks

Wearables — Grocery store assist

Electronics — Electrolytic Limitations

Biohacking — Vitamin-C + Gelatin for Accelerated Recovery

Python for Microcontrollers — Discord 20k, Summer of Making, Python 3.9 and more! #Python #Adafruit #CircuitPython @circuitpython @micropython @ThePSF

Adafruit IoT Monthly — Cosmo Clock, Low Powered Widlife Camera, and more!

Microsoft MakeCode — Arcade Mini Game in a Text Adventure

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.