Connect PCB to Lead-Acid Battery + Sensors Integration (ESP32)

@markoa7

Hi there, I’ve reviewed the ESP32/lead-acid battery integration and sensor suite you described. I’ll approach this by detailing a safe power path from the battery pack to the PCB, selecting clean grounding and durable connectors, and designing a compact sensor interface that reads temperature, humidity, and water presence through common I2C/SPI sensors. I’ll provide a minimal Arduino IDE example that reads the sensors and publishes data over HTTP/MQTT to your telemetry endpoint, with attention to sleep modes for battery life and simple validation for safe wiring. The deliverable will include a tested wiring diagram, mounting recommendations, and a concise Arduino sketch that demonstrates reading and sending data, using components and tools directly applicable to your stack. What specific ESP32 sensor models and the exact telemetry endpoint (HTTP vs MQTT, authentication method) would you like prioritized in the prototype?

@consultotal

Hi i'm engineer, Internet of things, machine learning, networking, lighting, power distribution, automation and control expert, i have experience working in electromechanical systems and control - design and building, automated machines, industrial networks, electrical grids, electrical vehicles, renewable energy, distribution substations, grounding, coordination of protections. I can develop for you designs, plans, bill of materials, budgets and simulations; solidworks, simulink, simscape, pscad, proteus, electrical / mechanical engineering

@hayat38402

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas:  Embedded C Programming.  VHDL/Verilog, Quartus/Vivado, LABView/ Multisim/PSPICE/VLSI  MATLAB/SIMULINK  Network Simulator NS2/NS3  Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32.  IDEs like Keil MDK V5, ATmel studio and MPLab XC8.  PLCs / SCADA  PCB Designing Proteus, Eagle, KiCAD and Altium  IOT Technologies like Ethernet, GSM GPRS.  HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.

@Amidst

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

@soltracker

here to help u out in this project. Its me imad an esp32 firmware developer. thanks for posting the job.............................................

@FranciscoSilvi

Hi There! -As you can see in my portfolio, I have extensive experience in PCB design and mass production monitoring equipment. I have designed a PCB that monitors, balances, and provides remote telemetry for Li-ion battery packs. In collaboration with a colleague, I developed a storage system for an off-grid cabin using recycled 18650 cells, configured in a 7S arrangement (21V to 28V) for solar inverters. -I integrated 10K NTC thermistors every five cells to ensure thermal management across the battery wall, which consisted of approximately 60 parallel strings at 7A (totaling ~400 18650 cells). In addition to thermal control, the PCB featured seven 25W resistors paired with MOSFETs to dissipate excess energy as heat, achieving passive balancing during charging cycles. I assume you are seeking a similar solution for lead-acid batteries. -I see you are based in Mexico; the shared native language provides a significant advantage for optimizing our collaboration. Regards!

@alectro86

Hola. He revisado tu proyecto para conectar una PCB ESP32 a baterías de plomo-ácido con sensores y telemetría. Soy programador de PLC y Arduino con experiencia en sistemas embebidos y electrónica de potencia. Mi enfoque incluye: 1. Seguridad Eléctrica: Recomendaciones de regulador Buck y fusibles para manejar la tensión de las baterías en serie de forma segura. 2. Integración de Sensores: Diagrama para 4 sensores externos con grounding (tierra) correcto para evitar ruido en las lecturas. 3. Firmware Robusto: Código en Arduino IDE para lectura y envío de datos (HTTP/MQTT), optimizando el consumo de energía. Para definir el alcance y ayudarte mejor: • ¿Ya cuentas con la PCB física o hay que diseñarla? • ¿Tienes los modelos de sensores (ej. DHT22, DS18B20) o necesitas recomendaciones? • ¿Estará el sistema en condiciones de vibración o humedad para sugerir conectores adecuados (JST/tornillo)? Quedo a tu disposición para entregar una solución profesional, segura y fácil de implementar. Saludos, Alejandro E. Programador de PLC y Arduino

@hancho6319

With a decade-plus of combined experience in Electronics and PCB Layout, I have quite an affinity for the type of work you need. From microcontroller coding with Arduino and ESP32 to the design of complex circuits like the one your project requires, I've been in the loop for a while now. Further, my knowledge in Electrical & Electronics Engineering sets me apart in terms of understanding power systems and principles which is crucial when dealing with batteries. Sensors integration? It's almost second nature to me! My practice runs of building automation systems have provided me with ample opportunities to engage different kinds of sensors, just like the ones you need - temperature, humidity, water presence, etc. I'm sure we can find the easiest and most efficient way to connect and mount them to your PCB. And guess what? I'm not stopping there! As an all-rounded engineer who has excelled at Software Engineering as well, I can indeed help you process the data from these sensors using Arduino IDE and send it seamlessly to your existing telemetry endpoint via HTTP/MQTT; making it easier for you to collect this valuable information.

@ElecHamza

Hi, I can assist you in safely integrating your lead acid battery pack with your PCB while ensuring robust protection for your external sensors. I will design a reliable wiring and grounding scheme to prevent noise interference and recommend the most durable connectors for your specific environment. My solution will include a well-documented Arduino script for the ESP32 to handle multi-sensor data acquisition and transmission via HTTP or MQTT. I have extensive experience managing power distribution for high-voltage battery systems and am ready to provide a clean, professional setup for your telemetry needs. Best regards

@rayyan1135

Hey there I came across your project and I'm excited to help, I specialize in battery-powered embedded systems using ESP32 and Arduino, with hands-on experience safely connecting PCBs to batteries (including lead-acid packs), integrating external sensors, and implementing telemetry (HTTP/MQTT). As an Electrical Engineer from UET Lahore with practical experience in embedded development (including STM32-based Modbus TCP implementations and various sensor integrations), I've worked on similar setups: powering microcontrollers from 12V lead-acid batteries, stepping down/regulating voltage safely, mounting/reading multiple sensors (temperature, humidity, water/leak detection, etc.), and sending data to cloud endpoints via Wi-Fi.

@JonathanRiv

Estoy diseñando un proyecto para hacer mi pecera con baterías el avance que llevo me serviría para desarrollar tu proyecto, es sencillo y todo sería modular

@yusam6

Hi, as an Industrial Automation and Robotics Engineering student, I have extensive experience with ESP32, Arduino IDE, and sensor integration. I can provide you with a safe wiring diagram for your lead-acid battery series, recommend proper grounding techniques, and develop the Arduino code including MQTT/HTTP telemetry. I am familiar with the sensors you mentioned and can deliver a robust prototype example quickly.

@Smalec3453

Hi, I have experience working with ESP32-based systems and battery-powered designs, specifically lead-acid batteries involved. I can provide safe wiring recommendations, grounding guidance, consulting on voltage levels converting and a simple Arduino example to read sensors and send data via HTTP/MQTT. A few questions: What is the battery pack voltage (total series voltage)? Are you already using a regulator or DC-DC converter? Which specific sensors are you integrating? I can help structure this cleanly and safely. Best regards.

@adrianb026

Hello, I'm an embedded engineer, and I can help you connect the PCB to the batteries and add the four sensors. I have extensive experience with Arduino and can complete this as quickly as possible. I will need to know which Arduino board you are using and where exactly you want the data to be sent. I look forward to working on this project with you.