Circuit Lake

Polysensor is built to provide a low-cost and easy method for testing impurities in water, with low-cost, rugged and tropicalized sensors. Currently, the instrument can be used to measure pH, Electrical conductance (EC), Total Dissolved Solids (TDS), Nitrate ion, Chloride ion, Salinity. The project is being developed with more parameters to be added such as [...]

If you want to build a contactless temperature measurement and looking for an idea, then this project is for you. Martin Nawrath has built non-contact infrared thermometer using MLX90614 and Arduino. This device can be used to measure temperature with range from -70 to +380 degree Celsius. Just connect the four leads to your Arduino [...]

If you want to make a handy humidity and temperature sensor then this project is for you. This mini Temperature / Humidity Monitor is built based on Arduino (Atmega 328P) and Sensiron SHT11 sensor. To display the result, it is equipped with Adafruit 128×32 OLED. The project uses LEGO shell for housing. The project powered [...]

The M16C/62P microcontroller-based RTMS is a low-cost device designed to measure liquid levels and monitor temperature in multiple containers simultaneously. The device is capable of monitoring about 50 overhead tanks simultaneously. Its small size makes it very handy and useful in the places where space is the big problem. Also RTMS use is not restricted [...]