GY-219 INA219 DC Current Sensor Module 26V INA219B High Side I2C Address (Pack of 2pcs) FZ2325X2
- Product Code: FZ2325X2-GY-219 INA219 DC Current Sensor
- Availability: In Stock
- $8.99
- Ex Tax: $8.99
- Price in reward points: 2
- 2 or more $7.99
- 5 or more $6.49
- 10 or more $5.49
Tags: GY-219, INA219, Current Sensor
Description:
This breakout board will solve all your power-monitoring
problems. Instead of struggling with two multimeters, you can just use
the handy INA219B chip on this breakout to both measure both the high
side voltage and DC current draw over I2C with 1% precision.
Most
current-measuring devices such as our current panel meter are only good
for low side measuring. That means that unless you want to get a
battery involved, you have to stick the measurement resistor between the
target ground and true ground. This can cause problems with circuits
since electronics tend to not like it when the ground references change
and move with varying current draw. This chip is much smarter - it can
handle high side current measuring, up to +26VDC, even though it is
powered with 3 or 5V. It will also report back that high side voltage,
which is great for tracking battery life or solar panels.
A
precision amplifier measures the voltage across the 0.1 ohm, 1% sense
resistor. Since the amplifier maximum input difference is ±320mV this
means it can measure up to ±3.2 Amps. With the internal 12 bit ADC, the
resolution at ±3.2A range is 0.8mA. With the internal gain set at the
minimum of div8, the max current is ±400mA and the resolution is 0.1mA.
Advanced hackers can remove the 0.1 ohm current sense resistor and
replace it with their own to change the range (say a 0.01 ohm to measure
up 32 Amps with a resolution of 8mA)
We include a 6-pin header
(so you can easily attach this sensor to a breadboard) as well as a
3.5mm terminal plug so you can easily attach and detach your load. Usage
is simple. Power the sensor itself with 3 to 5VDC and connect the two
I2C pins up to your microcontroller. Then connect your target power
supply to VIN+ and the load to ground to VIN-. We have an Arduino
library right now that will do all the gain, range and math for you -
just plug and go! We'll have a more detailed tutorial up shortly.
Specification:
Uses the INA219B chip
0.1 ohm 1% 2W current sense resistor
Up to +26V target voltage
Up to ±3.2A current measurement, with ±0.8mA resolution
This board/chip uses I2C 7-bit addresses 0x40, 0x41, 0x44, 0x45, selectable with jumpers
Package Included:
2 X INA219 Current Sensor
