Introduction
In this blog we will see 10 practical uses of the MX1BM1 Battery Level Monitor Module is a small yet powerful board that makes it easy to measure and track battery voltage in any electronic project. Designed for 1S LiPo or 1S Li-ion batteries, it outputs a safe, scaled-down analog voltage for your Arduino, ESP32, STM32, or any MCU’s ADC input.
But what can you actually do with it?
In this blog, we’ll explore 10 practical applications and project ideas where the MX1BM1 Module can make a big difference from IoT sensors to DIY power banks.
Download Gerber Files | Read Datasheet
Battery Level Indicator for IoT Devices
Most IoT sensors like weather stations or smart home nodes run on battery power. Using the MX1BM1 Module, you can measure the voltage periodically and send it to the cloud or mobile app giving you real-time battery health data.
Ideal for: ESP32-based temperature, humidity, motion sensors, etc.
Bonus Tip: Combine with deep sleep mode for ultra-long battery life.
Low-Battery Warning System
You can easily add a low-battery LED indicator or a buzzer that triggers when voltage drops below 3.3V.
With just a few lines of Arduino code, your project can warn the user before the power runs out.
Use Case: Portable devices, RC controllers, or robotics systems.
USB Power Testing & Diagnostics
When connected to USB-powered circuits, the MX1BM1 Module can help monitor voltage stability and detect voltage drops during load changes.
It’s perfect for checking USB cable quality or diagnosing low-voltage power sources.
Use Case: DIY electronics testing bench or USB-powered projects.
Battery-Powered ESP32 Projects
ESP32-based devices such as smart sensors, clocks, or BLE beacons can use the MX1BM1 Module to measure their remaining battery voltage directly.
By toggling the EN pin, the divider is only active during measurements keeping standby current extremely low.
Use Case: Long-life IoT nodes and Wi-Fi data loggers.
Wearable Electronics
In compact wearables or health-tracking devices, every milliwatt matters.
The MX1BM1 Module ’s low-power design and small 12×10mm footprint make it ideal for integrating battery level monitoring in portable, body-worn devices.
DIY Power Bank Voltage Display
You can use the MX1BM1 Module with a small OLED or 7-segment display to show the remaining battery voltage of your DIY power bank.
It’s simple, affordable, and works with standard 3.7V cells.
Use Case: Custom power banks or rechargeable gadgets.
Smart Agriculture or Remote Sensors
In agriculture and remote sensing systems, power sources are often solar or battery-based.
By pairing the MX1BM1 Module with a microcontroller + solar charger, you can remotely track battery voltage and optimize solar charging cycles.
Use Case: Soil moisture monitors, irrigation controllers, or environmental nodes.
Robotics & Autonomous Systems
Mini low power robots rely heavily on stable power supply. Using the MX1BM1 Module, you can continuously monitor voltage and prevent damage caused by undervoltage conditions in MCUs and sensors.
Use Case: Arduino or STM32-based robots, drones, and rovers.
Smart Home Devices
Smart lighting, thermostat controllers, or BLE beacons can use the MX1BM1 Module to report battery levels to the user’s mobile app or web dashboard.
This adds a professional touch and helps users know when it’s time to recharge.
Educational & Prototyping Use
The MX1BM1 Module is great for students, makers, and developers learning about voltage dividers, ADC measurements, and battery systems.
It provides a safe, plug-and-play way to understand how real-time voltage monitoring works in electronics.
Use Case: Electronics workshops, STEM education kits, or online tutorials.
Bonus Idea: Combine with OLED Display
Create a standalone battery level indicator using an ESP32 + MX1BM1 Module + 0.96″ OLED display.
Display battery voltage and percentage in real-time, perfect for portable instruments or handheld tools.
Why Choose the MX1BM1 module?
- Designed for 1S LiPo / 1S Li-ion batteries (3.0–5.2V)
- Features enable-controlled divider for ultra-low power applications
- Safe ADC scaling for 3.3V microcontrollers
- Compact and breadboard-friendly
- Suitable for Arduino, ESP32, STM32 and more
Download the Gerber files here
Conclusion
The MX1BM1 Battery Level Monitor Module is one of the most versatile tools for any maker or engineer. Whether you’re building a battery-powered IoT device, a wearable gadget, or simply testing voltages in your lab, this small board makes monitoring simple, safe, and reliable.
Integrate it into your next project and keep your devices smart about their own power!
Get your Datasheet in PDF
Battery Level Monitor Module Gerber Files – MX1BM1 | Battery Voltage Indicator PCB Design
Original price was: ₹499.00.₹359.00Current price is: ₹359.00.
A compact 4-pin module for monitoring battery voltage (3–5.2V) using an ADC, with enable function ideal for 1S LiPo and USB-powered projects.
Description
Disclaimer (Digital Product)
This product is a digital production pack, not a physical or assembled PCB. You will receive Gerber files, BOM, Schematics and documentation required to manufacture the PCB Module. No physical boards are shipped.
Download Product Datasheet: Download Now
Overview
The MX1BM1 Battery Level Monitor Module Gerber Files package provides a compact, low-power battery voltage monitoring PCB design for embedded systems, IoT devices, and battery-powered electronics. This board is designed to safely measure battery voltages ranging from 3.0V to 5.2V, making it suitable for 1S LiPo, Li-ion batteries, and USB-powered systems.
This battery level monitor PCB uses a precision voltage divider circuit combined with a MOSFET-based enable control, allowing developers to measure battery voltage only when required. This approach dramatically reduces standby current and makes the design ideal for deep-sleep applications and low-power battery management systems.
The module outputs a scaled analog voltage that can be directly connected to the ADC pin of popular microcontrollers such as ESP32, ESP8266, ESP32-C6, STM32, Arduino, and Raspberry Pi Pico. The design ensures ADC-safe voltage levels while maintaining measurement accuracy.
If you are searching for battery level indicator PCB Gerber files, battery monitoring circuit design, voltage divider PCB, or battery management design files, this module is a ready-to-manufacture solution.
Key Features
- Supports 3.0V to 5.2V battery input (VBAT)
- Optimized for 1S LiPo, Li-ion, and USB power sources
- Enable-controlled voltage divider for ultra-low power consumption
- Clean, stable ADC output using a 10 µF smoothing capacitor
- Scaled analog output safe for 3.3V ADC microcontrollers
- Standard 2.54mm 4-pin header for breadboard and jumper wire use
- Compact, space-saving PCB layout
- Designed for makers, hobbyists, engineers, and product developers
Applications
The MX1BM1 Battery Level Monitor Module is ideal for:
- Battery-powered IoT devices
- Wireless sensor nodes
- Low-power embedded systems
- Battery level reporting and telemetry
- Wearable electronics
- USB-powered diagnostic tools
- Battery cutoff and protection logic
- Prototyping battery management circuits
- Educational and DIY electronics projects
This PCB design is especially useful for developers building battery management systems, portable electronics, and energy-efficient microcontroller projects.
What You Will Receive (Digital Download)
This product pack will include:
- PCB Gerber Files
- Bill of Materials (BOM)
- Pick and Place (CPL)
- Example Arduino code for battery voltage reading
- Full product datasheet
- Documentation pack (README, License, T&C)
These files can be directly uploaded to PCB manufacturers such as JLCPCB, PCBWay, other manufacturers for fabrication.
Why Choose This Battery Level Monitor Module?
Unlike generic voltage divider circuits, the MX1BM1 design focuses on power efficiency, ADC safety, and real-world usability. The enable-controlled divider ensures minimal battery drain, making it suitable for production-grade designs, not just prototypes.
Whether you are a hobbyist looking for a reliable battery level indicator PCB or an engineer searching for ready-made battery monitoring Gerber files, this module saves design time and reduces risk.
Electrical Specifications
Input Voltage Range (VBAT): 3.0 V – 5.2 V
Supported Battery Types:
- 1S LiPo
- 1S Li-ion
- USB-powered sources
Output Signal: Scaled analog voltage (ADC-compatible)
Divider Ratio: ~0.0909 (VBAT → CL)
ADC Compatibility: Safe for 3.3 V ADC inputs
Enable Control: Yes (MOSFET-gated divider for low-power operation)
Standby Current: Near-zero when disabled (dependent on MOSFET leakage)
Pinout Description
| Pin | Label | Function |
| 1 | VBAT | Connect to battery or input voltage (max 5.2V) |
| 2 | GND | Ground connection |
| 3 | EN | Enable control (active HIGH, 3.3V logic) |
| 4 | CL | Scaled analog voltage output to MCU ADC |
PCB Layout & Dimensions
| Parameter | Value |
| Board Size | 12mm x 10mm |
| Layers | 2 |
| Components Placement | Top layer (Single side) |
| Pin Pitch | 2.54mm |
| Pin Header | 1×4 Male |
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