DESCRIPTION
What is an electronic brick? An electronic brick is an electronic module which can be assembled like Lego bricks simply by plugging in and pulling out. Compared to traditional universal boards and circuit modules assembled with various electronic components, electronic brick has standardized interfaces, plug and play, simplifying construction of prototype circuit on one’s own. There are many types of electronic bricks, and we provide more than twenty types with different functions including buttons, sensors, Bluetooth modules, etc, whose functions cover from sensor to motor drive, from Ethernet to wireless communication via Bluetooth, and so on. We will continue to add more types to meet the various needs of different projects.
Electronic brick of current sensor is based on ACS712 sensor, which can accurately detect AC or DC signals. The maximum AC or DC that can be detected can reach 5A, and the present current signal can be read via analog I / O port.
Features
1. Plug and play, easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market.
2. With use of M4 standard fixed holes, compatible with M4-standard kits such as Lego and Makeblock.
3. Terminals with screws for easy wiring and removing.
Specifications
| PCB size | 30.0mm X 24.0mm X 1.6mm |
| Working voltage | 5V |
| Input current type | AC or DC |
| Compatible interfaces | 2.54 3-pin interface and 4-pin Grove interface(1) |
| Wiring interface | Power terminal(2) |
Note 1: S for analog output port, V and G for voltage at the common collector and ground respectively
Note 2: :"+" for current inflow port "-" for current outflow port
Electrical characteristics
| Parameter | Min. | Typical | Max. | Unit |
| Supply voltage | 4.5 | 5 | 5.5 | VDC |
| Working current (VCC=5V) | - | 10 | 13 | mA |
| Output impedance RLOAD (VIOUT to GND) | 4.7 | - | - | KΩ |
| Bandwidth(1) | - | 34 | - | Hz |
| Input current range | -5 | - | 5 | A |
| Sensitivity | 180 | 185 | 190 | mV/A |
Note 1: After removing C1, bandwidth can reach 80kHz
Relationship between output voltage and induced current
DEMO
Connect S port of electronic brick of current sensor to A0 port of Arduino board, and we will use the following program to read the analog value and send it to the computer for display via serial port.
Revision record
| Version | Description | Date | Written by |
| v1.0 | Initial edition | 17th, April, 2013 | Stan Lee |
Specification
| Brick Type | Sensor Brick |
| Brick Interface | 3PIN |
| Brick Power Supply | 5V |
| Board Size | 30 x 24 x 1.6mm |
| LED Color | No |
| Weight | 20.00g |
| Model | IM120710011 |
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