Industrial weighing
In-motion weighing controller
- Our scope
- Hardware, firmware and software
- Outcome
- Field-deployed in weighbridges and in-line checkweighers, with event-wise readout in the cloud.
Engineering service
Hardware and PCB Design
Microcontroller boards, sensor interfaces, power circuitry and communication modules — designed for real-world conditions in Indian agriculture and industry.
Is this service a fit?
Typical clients
- OEMs adding electronic control or protection to a machine
- Product companies that need a production-ready controller board
- Teams whose prototype works on the bench but not reliably in the field
Problems it solves
- Electrical noise from motors and relays
- Surges, unstable supply and poor earthing at installation sites
- Long cable runs and component variation
- Boards that are hard to bring up, debug, source or assemble
Scope
What’s included
- Requirement analysis and architecture: microcontroller or processor, memory, power, connectivity and interfaces
- Schematic design covering power, protection, analog front end, communication and I/O
- Multilayer PCB layout in Altium Designer, up to eight layers: stack-up planning, controlled-impedance routing, grounding, decoupling, return paths and EMI
- Programmable logic (FPGA) where the design needs it
- Component selection and BOM strategy for availability and cost
- Board bring-up, system integration and testing
- Design with the product’s certification route in mind, for example in wireless module selection
From our design files
Altium Designer is used for schematic capture, multilayer PCB layout and manufacturing outputs.
What we need from you
- What the product must do and where it will be installed
- Power source and supply conditions at site
- Sensors, actuators and interfaces to connect
- Connectivity needed (for example GSM, Wi-Fi or wired)
- Size or enclosure constraints
- Target cost and expected production volume
- Any existing schematics, prototypes or test reports
What you receive
- Architecture and block diagram
- Schematic files and PCB database
- Fabrication outputs: Gerber, NC drill and stack-up
- Assembly outputs: pick-and-place and assembly drawings
- Bill of materials
- Prototype bring-up and validation report
- Design-review support pack
The exact list, file formats and ownership are confirmed in your project proposal.
Examples of our work
Images from our team’s embedded design projects: product photos and software screens. They show the kind of work this service covers, not Driptel or Gardentel.
At a glance
Interface hardware we design
From the interface design capability in our Company Profile, with the projects where our team has used each interface.
| Interface | What the design covers | Where our team has used it |
|---|---|---|
| CAN and CAN-FD | Bus topology, transceiver selection and firmware framing | Automotive lighting electronics (CAN and LIN) |
| Ethernet | MAC/PHY integration, magnetics and TCP/IP stack bring-up | In-motion weighing controller (Modbus TCP) |
| RS485, RS232, Modbus RTU and TCP | Isolated interfaces with protection and clean signalling | In-motion weighing controller; Driptel (RS485 with Modbus, as an option) |
| USB, Wi-Fi, Bluetooth LE, MQTT and HTTP | Wireless module selection with the certification route in mind | Scales indicator and medical cart (Wi-Fi and Bluetooth); home automation unit |
| 433 MHz RF and load switching | Long-range RF on a coin-cell board; 24 V, 10 A load path with reverse-connection and overload protection | Wireless automation hardware |
Process
Milestones and acceptance checkpoints
Requirement freeze
Scope, interfaces and success criteria agreed in writing before design starts.
CheckpointRequirement sign-off
Architecture and component selection
Microcontroller, interfaces and power topology, with the BOM strategy.
CheckpointArchitecture review
Schematic and PCB development
Schematics, multilayer routing, stack-up, impedance control and DFM output.
CheckpointDesign review and release for fabrication
Prototype assembly and bring-up
Fabrication release, assembly coordination, then power-up, debug and interface checks.
CheckpointValidation report
Production handover
Reviewed output package and design files, with support for the first manufacturing feedback.
CheckpointProduction release
Evidence
Case studies and notes
From our own products
Driptel’s hardware — including its phase-failure, voltage and dry-run protection circuits — was engineered by Sai Agro Tel, as was the Gardentel controller hardware.
Wireless automation
Wireless automation hardware
- Our scope
- RF and power hardware, protection, firmware
- Outcome
- Delivered: wireless boards, receiver power hardware and protection circuits, with firmware and bring-up.
From our engineering notes
Power protection on a pump controller
How Driptel’s hardware treats an unstable supply: phase-failure, voltage and dry-run protection on a GSM pump and valve controller.
What a six-layer weighing board had to include
Four boards, a six-layer LPC1788 controller, RTOS firmware and cloud readout for weighbridges and in-line checkweighers.
Other engineering services
FAQs
Frequently asked questions
Can’t find your answer? Ask the team directly.
Do you design with microcontrollers or FPGAs?
Both. Our hardware designs are based on microcontrollers and FPGAs (programmable logic), chosen to match the product’s performance and cost targets.
Can you also write the firmware and design the enclosure?
Yes. Firmware and embedded software, and mechanical and enclosure design, are both part of our services, so the board can be developed together with them.
When is the right time to start hardware design?
Once interfaces, power source, sensor requirements, connectivity, target cost and expected production volume are reasonably clear. If they are not, we start by working through them with you.
Which design tools do you use?
Altium Designer for schematic capture, multilayer PCB layout and manufacturing outputs, with stack-up planning and controlled-impedance routing.
Do you support production after the design?
Yes — BOM design, cost optimisation and support for volume production. See testing and production support.
Start a conversation
Discuss your hardware requirement
Share what you are building. The more context you give, the more useful our first reply can be.