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-
TECHNICAL DETAILS
Uses the INA219B chip, see datasheet for detailed specifications
0.1 ohm 1% 2W current sense resistor
Up to +26V target voltage
Up to ±3.2A current measurement, with ±0.8mA resolution
0.9" x 0.8" PCB
This board/chip uses I2C 7-bit addresses 0x40, 0x41, 0x44, 0x45, selectable with jumpers
I had used a lots of LoRa module till now, but it's really the best among all of them! the 1262 is a great upgrade in terms of output power and configuration. we can configure the output power, bandwidth, spreading factor and a tons of other things, which are not possible to configure on previous modules. the radiolib library works preety good with it and it also supports rssi and snr like features, which are very crucial when you are seriously researching on antenna or range related works! that's why I eventually like this module more then ebyte LoRas. To me this is the best module in IN8 68MHz, which is completly legal and free to use in India upto 1W! And also thanks to thinkrobotics, I got it in just 1 working day, and your packaging was also too good! Love your service, and keep this modules available on your websight. Your pricing of this module is too good, and I'll buy many of these modules. Thank you!
I had used a lots of LoRa module till now, but it's really the best among all of them! the 1262 is a great upgrade in terms of output power and configuration. we can configure the output power, bandwidth, spreading factor and a tons of other things, which are not possible to configure on previous modules. the radiolib library works preety good with it and it also supports rssi and snr like features, which are very crucial when you are seriously researching on antenna or range related works! that's why I eventually like this module more then ebyte LoRas. To me this is the best module in IN8 68MHz, which is completly legal and free to use in India upto 1W! And also thanks to thinkrobotics, I got it in just 1 working day, and your packaging was also too good! Love your service, and keep this modules available on your websight. Your pricing of this module is too good, and I'll buy many of these modules. Thank you!
Team is suppotive and solves all the queries .
The product is good and will surely help me in my project...looking forward for more trades with think robotics.
{"id":6794705436758,"title":"CJMCU-219 INA219 I2C Zero Drift Bi-directional Power Monitoring Module","handle":"cjmcu-219-ina219-i2c-zero-drift-bi-directional-power-monitoring-module","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cdiv data-spm-anchor-id=\"a2g0o.detail.1000023.i0.29eb2854dss0t2\" data-mce-fragment=\"1\"\u003eThis 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.\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eMost 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.\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eA 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)\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eWe 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-\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTECHNICAL DETAILS\u003c\/h3\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eUses the INA219B chip, see datasheet for detailed specifications\u003c\/li\u003e\n\u003cli\u003e0.1 ohm 1% 2W current sense resistor\u003c\/li\u003e\n\u003cli\u003eUp to +26V target voltage\u003c\/li\u003e\n\u003cli\u003eUp to ±3.2A current measurement, with ±0.8mA resolution\u003c\/li\u003e\n\u003cli\u003e0.9\" x 0.8\" PCB\u003c\/li\u003e\n\u003cli\u003eThis board\/chip uses I2C 7-bit addresses 0x40, 0x41, 0x44, 0x45, selectable with jumpers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","published_at":"2022-12-06T11:03:04+05:30","created_at":"2022-08-17T08:12:16+05:30","vendor":"ThinkRobotics","type":"","tags":["Bi-directional","CJMCU-219","current","Drift","ELC1","I2C","INA219","LVL-DATA","Module","Monitoring","Power","Zero","ZOHO UPDATED"],"price":27999,"price_min":27999,"price_max":27999,"available":true,"price_varies":false,"compare_at_price":39999,"compare_at_price_min":39999,"compare_at_price_max":39999,"compare_at_price_varies":false,"variants":[{"id":40013085638742,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"ELC1116","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"CJMCU-219 INA219 I2C Zero Drift Bi-directional Power Monitoring Module","public_title":null,"options":["Default Title"],"price":27999,"weight":25,"compare_at_price":39999,"inventory_management":"shopify","barcode":"ELC1116","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/products\/Hc6d07ef6c1dd46bb8d3398286f0b1211e.jpg?v=1660704284","\/\/thinkrobotics.com\/cdn\/shop\/products\/Hc2cbc9f2fc324d3b8d4f84bc8b576f91C.jpg?v=1660704284"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/products\/Hc6d07ef6c1dd46bb8d3398286f0b1211e.jpg?v=1660704284","options":["Title"],"media":[{"alt":"CJMCU-219 INA219 I2C Zero Drift Bi-Directional Power Monitoring Module","id":23138495397974,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1300,"width":1300,"src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/Hc6d07ef6c1dd46bb8d3398286f0b1211e.jpg?v=1660704284"},"aspect_ratio":1.0,"height":1300,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/Hc6d07ef6c1dd46bb8d3398286f0b1211e.jpg?v=1660704284","width":1300},{"alt":"CJMCU-219 INA219 I2C Zero Drift Bi-Directional Power Monitoring Module","id":23138495365206,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1300,"width":1300,"src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/Hc2cbc9f2fc324d3b8d4f84bc8b576f91C.jpg?v=1660704284"},"aspect_ratio":1.0,"height":1300,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/products\/Hc2cbc9f2fc324d3b8d4f84bc8b576f91C.jpg?v=1660704284","width":1300}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cmeta charset=\"UTF-8\"\u003e\n\u003cdiv data-spm-anchor-id=\"a2g0o.detail.1000023.i0.29eb2854dss0t2\" data-mce-fragment=\"1\"\u003eThis 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.\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eMost 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.\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eA 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)\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003eWe 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-\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e \u003c\/div\u003e\n\u003ch3 data-mce-fragment=\"1\"\u003eTECHNICAL DETAILS\u003c\/h3\u003e\n\u003cdiv data-mce-fragment=\"1\"\u003e\n\u003cul\u003e\n\u003cli\u003eUses the INA219B chip, see datasheet for detailed specifications\u003c\/li\u003e\n\u003cli\u003e0.1 ohm 1% 2W current sense resistor\u003c\/li\u003e\n\u003cli\u003eUp to +26V target voltage\u003c\/li\u003e\n\u003cli\u003eUp to ±3.2A current measurement, with ±0.8mA resolution\u003c\/li\u003e\n\u003cli\u003e0.9\" x 0.8\" PCB\u003c\/li\u003e\n\u003cli\u003eThis board\/chip uses I2C 7-bit addresses 0x40, 0x41, 0x44, 0x45, selectable with jumpers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e"}
