Category Archives: Schematic Review

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My Texas Instruments LM5170EVM-BIDIR board refuses to deliver any output voltage when I switch it to buck mode. Boost mode also does not run, so I’m convinced the fault is somewhere in power stage or its sensing network… (Budget: ₹750 – ₹1250 INR, Jobs: C Programming, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, Schematic Review)

I have a dual-band RF switch already drafted in Altium that lets one shared antenna handle both 433 MHz (primary) and 470 MHz LoRaWAN links. Before moving on to the board, I need fresh expert eyes on the schematic… (Budget: $250 – $750 USD, Jobs: Altium Designer, Analog Electronics, Circuit Design, Electrical Engineering, Electronics, PCB Design and Layout, PCB Layout, Schematic Review, Signal Processing, Simulation)

Description:
We are developing a solar-powered ESP32-based IoT controller for agriculture field deployment (valve control and sensor monitoring). Before sending the PCB for manufacturing, we are looking… (Budget: ₹12500 – ₹37500 INR, Jobs: Altium Designer, Debugging, Electrical Engineering, Electronics, Embedded Systems, I2C, Schematic Review)

Description:
We are developing a solar-powered ESP32-based IoT controller for agriculture field deployment (valve control and sensor monitoring). Before sending the PCB for manufacturing, we are looking… (Budget: ₹12500 – ₹37500 INR, Jobs: Altium Designer, Debugging, Electrical Engineering, Electronics, Embedded Systems, I2C, Schematic Review)

I have a compact electronic gadget roughly the size of a modern smartphone. For component-testing purposes, I need it taken apart methodically, each part documented, and the electrical behaviour of every module measured… (Budget: €30 – €250 EUR, Jobs: Circuit Board Layout, Circuit Design, Documentation, Electrical Engineering, Electronics, Microcontroller, PCB Layout, Schematic Review, Technical Documentation, Technical Support)

I’ve been developing on the ESP32-WROOM-32 and now need a custom board so I can move my prototype off the breadboard. The board should have ESP32, EM18, RTC, Camera, Buzzer and SD Card. I will use the gerber to get PCBA from JLCPCB or some other vendor… (Budget: $10 – $30 USD, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Design and Layout, PCB Layout, Prototyping, Schematic Review, Signal Processing)

I have an existing KiCad schematic for a two–sided STM32-based flight controller (roughly 120 components) that needs a professional once-over before we head to fabrication. The immediate tasks are: •… (Budget: $250 – $750 USD, Jobs: Circuit Design, Drones, Electrical Engineering, Electronics, Embedded Systems, PCB Layout, Schematic Review, STM32)

I already have a fully captured schematic and a reference board outline in Autodesk Fusion 360; traces have not yet been laid. Before we move forward I’d like a seasoned eye to comb through both the schematic… (Budget: $30 – $250 USD, Jobs: Antenna Design, Autodesk Fusion 360, CAD/CAM, Electronics, Fusion 360, PCB Layout, Product Design, Schematic Review)

I have a signal processing amplifier board that is not providing any amplification or signal output. I am looking for an expert in India who can urgently repair this issue. I will ship the physical board to your address, and I expect it to be returned to me after repair… (Budget: ₹1500 – ₹12500 INR, Jobs: Analog Electronics, Circuit Board Layout, Circuit Design, Debugging, Electrical Engineering, Electronics, Engineering, PCB Design and Layout, Schematic Review, Signal Processing)

I have a signal processing amplifier board that is not providing any amplification or signal output. I am looking for an expert in India who can urgently repair this issue. I will ship the physical board to your address, and I expect it to be returned to me after repair… (Budget: ₹1500 – ₹12500 INR, Jobs: Analog Electronics, Circuit Board Layout, Circuit Design, Debugging, Electrical Engineering, Electronics, Engineering, PCB Design and Layout, Schematic Review, Signal Processing)

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