Circuit Lake

This project shows how to create a Renesas M16C62P-based small Remote Terminal Unit (RTU) that implements a Host communication protocol (MODBUS RTU), a smart instrumentation communication protocol Highway Addressable Remote Transducer (HART) and few digital and analog inputs and outputs.
Remote Terminal Units (RTU) are frequently used for process control and monitoring. The market for [...]

SmartProbe is simple low cost moisture and temperature alarm system for plants. Insert it in the plant’s root system and it measures the moisture and temperature. It sounds an alarm if the moisture or temperature goes out of preset limits. Shut it off with a gentle tap or knock on it to ask it [...]

PetInspect is a sophisticated data-logger and wireless communications device that lets you discover what environment your pet experiences and how they behave while you’re not around. The device consists of a 16-bit microcontroller with 256K of flash memory and sensors for pressure, temperature, activity, light and proximity. The digital transceiver provides communication with a range [...]

The project converts a stovetop pressure cooker/canner into a fully automated pressure processing system with the addition of a few inexpensive components. It can accurately monitors and controls the pressuring process.

Using a Renesas M16C microcontroller, the system can control the entire process using an ordinary off-the-shelf pressure cooker/canner and portable electric coil burner. Once the [...]