End-to-End IoT Hardware Development
Budget: ₹37,500 – ₹75,000 INR
I’m bringing a new commercial IoT device to market and need a single engineer who can take the hardware from napkin sketch to tested prototype. The work spans hardware architecture, schematic capture, multilayer PCB layout, component selection, power-and-protection design, and all embedded C++ firmware.
Core requirements
• Connectivity: Wi-Fi only for the first revision
• Sensors: a Temperature sensor and a Humidity sensor are mandatory, along with moisture measurement and any related environmental sensing you recommend.
• Actuators: the board must be able to drive pumps as the primary load, plus leave head-room for additional actuators of similar power levels.
I expect you to design for manufacturability, choose readily available parts, and document every step clearly. Firmware should handle sensor sampling, safety logic, actuator control, OTA updates and cloud messaging; you are free to select an RTOS or bare-metal approach so long as the code is modern C++.
Deliverables
- Complete schematic, PCB layout files, Gerbers, 3D STEP, and a costed BOM
- Compilable firmware source with build scripts and flashing instructions
- One fully assembled and tested prototype that demonstrates:
• stable Wi-Fi connectivity with end-to-end data exchange to my backend API (defined by me), including authentication, retries, and error handling
• accurate sensor readings
• reliable pump control with safety interlocks
- A concise design dossier covering calculations, test results and future-revision notes
We will break the project into fixed-price milestones—architecture, schematic/Layout, prototype build, firmware bring-up, final validation—so progress is clear for both sides. Successful collaboration here can roll straight into certification support and production ramp-up. If you’ve already delivered real, working PCB-based products and enjoy owning the whole stack, let’s talk.
I am not looking to coordinate multiple contractors; ownership of hardware and firmware integration rests fully with you.
Core requirements
• Connectivity: Wi-Fi only for the first revision
• Sensors: a Temperature sensor and a Humidity sensor are mandatory, along with moisture measurement and any related environmental sensing you recommend.
• Actuators: the board must be able to drive pumps as the primary load, plus leave head-room for additional actuators of similar power levels.
I expect you to design for manufacturability, choose readily available parts, and document every step clearly. Firmware should handle sensor sampling, safety logic, actuator control, OTA updates and cloud messaging; you are free to select an RTOS or bare-metal approach so long as the code is modern C++.
Deliverables
- Complete schematic, PCB layout files, Gerbers, 3D STEP, and a costed BOM
- Compilable firmware source with build scripts and flashing instructions
- One fully assembled and tested prototype that demonstrates:
• stable Wi-Fi connectivity with end-to-end data exchange to my backend API (defined by me), including authentication, retries, and error handling
• accurate sensor readings
• reliable pump control with safety interlocks
- A concise design dossier covering calculations, test results and future-revision notes
We will break the project into fixed-price milestones—architecture, schematic/Layout, prototype build, firmware bring-up, final validation—so progress is clear for both sides. Successful collaboration here can roll straight into certification support and production ramp-up. If you’ve already delivered real, working PCB-based products and enjoy owning the whole stack, let’s talk.
I am not looking to coordinate multiple contractors; ownership of hardware and firmware integration rests fully with you.