It’s not unheard of for the i2c bus to “lock-up” on you, which can stop your system from working. If you are trying to operate a remote or embedded system, this is not ideal. This article discusses techniques that you can use to try and make your system more fault-tolerant and attempt to recover from

The previous article in this series introduced the “Watchdog Timer “ as a tool to use to build more reliable systems; it will reset the Arduino processor in the event of the application locking up. However, as in medicine, this is like treating the symptom and not the cause. Why did the application lock-up in

A previous article in the series introduced the concept of the Arduino Watchdog Timer and its value in developing more reliable embedded systems. When developing systems based on the Sleepy Pi platform, we make extensive use of an Arduino library to put the Arduino to sleep. In some cases, this library uses the watchdog internally

Embedded systems are generally extremely reliable; they are closer to the “bare metal” and don’t have the layers that a Desktop Operating System has and thus there is less to go wrong*. However, they are not without their own challenges and can also hang on occasion. This can be for a variety of reasons, from