![lipo battery monitor circuit lipo battery monitor circuit](https://www.picclickimg.com/d/l400/pict/192336523977_/5x-Stück-Turnigy-750mAh-1S-35C-70C-Lipo-Akku.jpg)
I won't elaborate too much further here since this is only a test program and can be modified or rewritten to suit the needs of many different use cases.
![lipo battery monitor circuit lipo battery monitor circuit](https://i.imgur.com/raYwY3q.jpg)
LIPO BATTERY MONITOR CIRCUIT CODE
More details can be found in the source code file in the data-sheets section of this website or the Gitlab repository. After the value for "cell4" is stored away, "cellCounter" is reset for the next 4 cell sequence. After sending the proper command, another I2C transmission sequence is initiated and the cell value is received and stored in one of four variables named "cell1", "cell2", "cell3", or "cell4". "GetBattery" checks the value of "cellCounter" and loads/sends the corresponding I2C command which tells the BMC to read a particular cell. "cellCounter" is initially zero and incremented everytime "GetBattery" is called. This is accomplished with the variable named "cellCounter". You may be wondering how calling "GetBattery" four times allows us to determine which cell values are being read and placed in the correct variables. All of the this is accomplished in the code shown below: This allows us to check the values saved by the external device (via a logic analyzer) and see if everything worked out correctly. Once the battery reading is performed, the four cell voltages are transmitted out on the UART TX pin. The code where the LED is turned off can be placed anywhere in the program to aid in debugging when you are trying to narrow down the location of any problems. This just adds a visual indicator to help troubleshoot problems if the program is hanging up somewhere. One LED is controlled by the voltage of the push-button switch and the other via software. Additionally, two LEDs are lit once the switch is pressed and turned off after the cell readings have been performed and the push-button is not longer pressed. The program ensures that only a single four cell reading is performed per a single button press. The switch input is polled and upon being pressed, the main loop of the program calls the subroutine "GetBattery" four times (once for each cell). In order to make it easier to initialize communication with the BMC at a specific time, the process is initiated via a push-button switch. Stage1: At the initial stage1 we see that the battery voltage rises from 0.25 V to 4.0 V level in around one hour at 1 amp constant current charging rate.
LIPO BATTERY MONITOR CIRCUIT FULL
The program is named ROVsubBatteryTest_main.asm and the external device in use is also a PIC16F1937. The following graph suggests the ideal charging procedure of a standard 3.7 V Li-Ion Cell, rated with 4.2 V as the full charge level. Now that we have the Battery Monitor Circuit (BMC) working, let's quickly look at a simple test program that demonstrates communication between an external device and the BMC. LiPo Battery Charger Circuit PCB Gerber Files.LiPo Battery Monitoring Circuit (test program) In this circuit D1 LED indicates the charging status and D2 LED indicates the full charge condition or charge done. This circuit provides Pin header and JST battery connector, hence we can connect Lipo battery in these two way.
![lipo battery monitor circuit lipo battery monitor circuit](https://ae01.alicdn.com/kf/HTB1CtG9LVXXXXa6aXXXq6xXFXXXk/Protection-Circuit-Module-2S-5A-BMS-PCM-PCB-Battery-Protection-Board-For-7-4V-Li-ion.jpg)
Hence we can easily connect and charge Lipo battery. Input for this circuit comes from USB C Receptacle GCT USB 4085. This Lipo battery charger circuit designed to charge 4.2V battery and gives 500mA charging current. This IC comes in 8-lead DFN and 5 lead SOT-23 packages.
![lipo battery monitor circuit lipo battery monitor circuit](https://barcodeindex.s3.amazonaws.com/images/716150443818.jpg)
This IC can be programmed to give 100 mA to 1000 mA charging current. This IC MCP73831 from microchip is a miniature single cell, fully integrated li-ion, li-polymer battery charge management controller. Li-Po Battery charger circuit designed by using IC MCP73831.