A-Star 328PB Micro - 3.3V, 12MHz

The SparkFun Current Sensor Breakout is a High Precision Card that uses the ACS723 for Moderate AC and DC Current Detection Applications. The ACS723 Sensor uses a Hall Effect Sensor to Emit a Voltage relative to the Current that flows through the IP + and IP- Pins on the Board. The advantage of using a Hall Effect Sensor, specifically, is that the Circuit Being Detected and the Sensor Reading Circuit are Electrically Isolated, which means that although your Arduino is Operating at 5V, the Detected Circuit may be Operating at Higher DC or AC voltages.

A-Star 328PB Micro - 5V, 20MHz

Electronic Brick - Sensor de Corrente - Loop 4-20mA

Bi-directional Logic Level Converter 4-channel by I2C BSS138

This is a DC-DC buck-mode power module, with input voltage range of 3V - 15V and fixed voltage / current at fixed 5V / 600mA . Working frequency can reach 0.5 MHz . The module has high conversion rate and small size, easy to incorporate.

The Current Sensor 70A is a great option for those looking for equipment to measure current up to 70A and that is non-invasive.

The Module KA2284 is a Battery, Power and Audio Level Indicator.

Want to start playing with sensors, but don&rsquot know where to begin? This kit includes a variety of basic sensors for any beginner or experienced programmer. With everything included in this kit, you&rsquoll be able to sense acceleration, force, vibration, Infrared light, ambient light, temperature, and more!