LED Indicator Firmware for E-Bike Charger

@macroenergy

With over a decade of experience, I specialize in digital motor control, power electronics, and electronic design, which makes me your ideal candidate for your LED Indicator Firmware project. I have an extensive background not only in designing low-cost firmware with minimal components but also in working with low-power circuits like the one in your E-bike charger. My knowledge in Analog Design will prove to be valuable as it allows me to create robust circuits that are capable of noiseless operation, improving overall performance. Moreover, my proficiency in various microcontrollers including the ones from Texas Instruments, Atmel, Renesas, STM32 and C2000 is an asset that can significantly benefit your project. Handling an array of embedded systems such as PIC18, PIC24, PIC30 & dsPIC applications has also given me desirable insight in working on low footprint solutions. Lastly, being well-versed in PCB design softwares such as Altium and Easyeda, I can provide you with a comprehensive schematic and wiring diagram that would perfectly integrate with your existing charger board. My commitment to quality is evident in my clean and apt coding practices – something I assure will be demonstrated through this project too. Together, we can create the perfect firmware solution for your E-bike charger LED indicators.

@hayteekeys

Hi, I can deliver complete firmware and hardware design for a 6-LED charge indicator (Power, 25%/50%/75%/100%, Fault) on a low-cost MCU, optimized for production integration into your 48–84 V e-bike charger. MY APPROACH - MCU Selection: Use a cost-effective chip (e.g., ATtiny85, STM8, or PIC10F) with minimal external components. - Voltage Sensing: Design a precision resistor divider + protection (Zener/TVS) to safely scale 48–84 V down to MCU ADC range. - LED Logic: Firmware reads battery voltage, drives LEDs at correct thresholds (25%/50%/75%/100%), monitors fault flag, and lights Power LED when active. - Production-Ready: Minimal BOM, clear schematic snippet showing MCU, divider, fuse tap, and protection for easy board integration. DELIVERABLES Well-commented source code + compiled hex (builds warning-free) Pin map and wiring diagram (MCU, divider, LEDs, protection) Bench test routine to verify LED behavior across 48–84 V sweep Brief guide explaining how to adjust voltage thresholds for different cell chemistries EXPERIENCE Extensive embedded firmware for battery management systems Low-cost MCU design for automotive/e-mobility applications Production-focused designs with minimal component count I am Ready to start immediately.

@Adeel2k14

I am an electrical engineer with over 7 years of experience in embedded systems, PCB design, and firmware development. I have worked on battery-powered products, chargers, voltage sensing, and low-cost microcontroller firmware for production use. I can select a suitable low-cost MCU, develop clean and well-commented firmware to drive all six LEDs, define accurate voltage thresholds, and implement fault detection. I will provide source code, compiled hex, pin mapping, test procedure, and a clear schematic snippet ready for hardware integration. Regards, Muhammad Adeel

@Safeer143

Hello. I read your project description very carefully. I have completed many projects regarding Designing for E bike charger . I have a deep understanding and experience in the areas of microcontroller that you mentioned. We are a company of mechatronics, electrical, computer and software engineers with vast expertise in PCB layout, embedded systems, AC/DC converters, stepper motors, transformers, python, machine learning, raspberry pi, automation, power management, sensors & signal processing projects, unsupervised learning, reinforcement learning, genetic algorithm, convolutional model, recurrent network, We can assure you that your work will be done within the given timeline with complete task achievement. Feel free to contact for further queries so I may guide you well.

@SMBelectronics

Hey there, This is a nice, contained control task, and it’s very doable with a small, low-cost MCU. Six LEDs, fixed voltage thresholds, and autonomous operation are exactly the kind of logic that should be simple, robust, and production-friendly. I’ve built similar indicator and threshold-monitor firmware for chargers and power systems, where voltage dividers, fault flags, and clear LED behavior had to match specs exactly. I’m comfortable selecting a minimal MCU, writing clean firmware, and keeping the component count low so it drops straight into an existing board. You’ll get well-commented source, a compiled hex, a clear pin map, and a simple bench test routine to validate each LED at the right voltage points. I’ll also document how to adjust thresholds later if chemistry changes. Rather than guessing divider values or MCU choice, I’d like to confirm how you currently sense pack voltage and the fault signal on a quick chat. If this sounds aligned, message me using the chat button. P.S. Visit my profile to see similar charger, indicator, and embedded control work I’ve done.

@dominicd28

Dear Client, Good morning . I hope this proposal finds you well. This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills, (Electrical Engineering, Embedded Systems, C++ Programming, Embedded Software, Microcontroller, PCB Layout, Electronics and C Programming), as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. WELCOME.

@mohamedaminea1

Hello, I have over 6 years of embedded firmware experience and have delivered 30+ MCU-based power and charging control projects, including battery monitors covering 24 V to 96 V systems with ±1% voltage threshold accuracy. I have implemented LED state machines and fault-detection logic on low-cost MCUs (PIC, AVR, STM8) with production volumes exceeding 10,000 units and zero field failures. My approach will be: (1) select and size a cost-optimized MCU with internal ADC and minimal external components, (2) design the voltage divider, protection, and fuse-sense interface for accurate 48–84 V measurement, (3) implement autonomous firmware with calibrated thresholds, fault flags, and deterministic LED sequencing, (4) validate behavior using simulated voltage sweeps and bench tests, and (5) deliver commented source, compiled hex, pin map, and schematic snippet. The firmware will be written warning-free, structured for easy maintenance, and include configurable set-points to support future chemistry changes. A simple test routine will be provided to force each LED state and fault condition for production and debugging. Could you confirm the preferred MCU family or cost target, the expected fault conditions to detect, and whether the charger board already includes ADC filtering or protection components? Additionally, do you require compliance with any specific coding or documentation standards?

@GeneralNeyo

I can deliver a compact, production-ready MCU solution that accurately drives all six LEDs across the 48–84 V range. You’ll get clean, well-commented firmware (HEX + source), precise voltage thresholds, a clear pin map, and a simple bench test routine. I’ll also include a drop-in schematic snippet with protection and divider details, plus documentation showing how to adjust set-points for future chemistry changes.

@bhismad9

We propose developing a compact, autonomous LED status indicator using the ATtiny85 microcontroller, optimized for minimal components and production ease. This solution includes full firmware, pin mapping, test routine, schematic, and tweak guide to meet your 48V–84V charger requirements precisely

@venkatasurendra8

I’m submitting my bid for the development of a compact, production-ready firmware solution to drive six LED indicators for your 48–84 V electric two-wheeler charger. Understanding of Requirements: The scope includes: ->Selection of a low-cost, minimal-footprint microcontroller Autonomous firmware to drive: ->Power ON indicator (1 LED) ->Charging progress indicators at 25%, 50%, 75%, and 100% ->Fault indicator LED ->Voltage-based charging state detection across a 48 V–84 V range ->Bench-test routine to validate LED behavior at defined thresholds ->Clear pin mapping and hardware interface definition ->Schematic snippet covering MCU, voltage divider, fuse tap, and protection ->Well-commented source code and compiled HEX file ->Documentation for adjusting voltage set-points for future chemistry revisions Proposed Technical Approach: ->MCU: Low-cost 8-bit MCU (e.g., AVR ATtiny / PIC16 / STM8), selected for minimal BOM and production stability ->ADC-based voltage sensing via protected resistor divider ->Deterministic LED state machine with fault override ->Thresholds defined as constants/macros for easy tuning ->Firmware written to compile warning-free using standard toolchains Deliverables ->Complete firmware source code + compiled HEX ->LED pin mapping and MCU configuration details ->Test procedure for voltage sweep and fault simulation ->Schematic/wiring diagram ready for charger-board integration ->Short technical note explaining how to modify voltage thresholds

@Dileep8114

We propose a low-cost, autonomous microcontroller-based LED indicator system for a 48–84 V electric two-wheeler charger. The solution drives six LEDs: charger power ON, four charge-level indicators (25 %, 50 %, 75 %, 100 %), and one fault indicator. A compact 8-bit MCU with built-in ADC monitors battery voltage through a protected resistor divider and evaluates fixed thresholds to control the LEDs. A dedicated digital input handles external fault signals. The design uses minimal components, requires no host controller, and is suitable for mass production. Deliverables include fully commented firmware source and HEX file, LED pin mapping, a schematic snippet (MCU, divider, protection, LEDs), and a simple bench test routine to verify LED behavior across a simulated 48–84 V sweep and fault condition. Voltage set-points are defined in constants so they can be easily adjusted for future battery chemistry changes. Completion criteria: code builds without warnings, LEDs trigger at correct voltages, fault indication works instantly, and documentation explains threshold tuning.

@vikramec08

Hi , i m based in delhi and have 16year working experience on embedded , could you share the fault that you want to check as far i know people have implemented the over,under voltage short circuit and no charging . We can use st or tiwan make mcu to reduce the cost . The tiwani make mcu start @8 inr

@iamVutuk

Hello, This is Vutuk Design and Media, led by Senior Engineer Ashraf Ali Shaikh. With 15+ years of experience in product development and engineering services, our agency specializes in creating production-ready solutions for automotive and e-mobility applications. We understand that a battery charger indicator needs to be accurate and robust to ensure user confidence and safety. Questions: Do you need the firmware to support multiple battery profiles (selectable via jumper/switch), or is it fixed? What is the maximum input voltage tolerance we should design the protection circuit for (transients above 84V)? Do you require any specific low-power mode for the MCU when the charger is idle? Would you like us to provide the Gerber files for a small daughterboard if your main board space is limited? I invite you to visit our profile and portfolio to see examples of our electronic product designs and engineering capabilities. Best regards, Vutuk Design and Media