IoT Devices

The Internet of Things (IoT) connects the physical and digital worlds, generating data that drives smarter decisions. Alchemilla Ventures provides complete IoT device development and deployment services for organisations.

The IoT Opportunity

the IoT market is projected to reach $9 billion by 2025, driven by smart manufacturing, precision agriculture, connected logistics, and smart city initiatives. — with its manufacturing strength, agricultural base, and government smart city projects , Coimbatore, and Madurai — is at the forefront of IoT adoption. Our IoT lab helps you capitalise on this opportunity.

Our IoT Device Development Services

• Hardware Design & Prototyping: We design IoT device hardware — sensor integration, microcontroller/microprocessor selection (ESP32, STM32, Raspberry Pi, Arduino), PCB design (Altium, KiCad), power management (battery, solar, PoE), and enclosure design (3D-printed prototypes, IP-rated enclosures). Our lab has capabilities for rapid prototyping with in-house 3D printing and basic PCB assembly.

• Firmware & Embedded Software Development: Bare-metal and RTOS-based firmware (FreeRTOS, Zephyr, Arduino) for resource-constrained devices, and embedded Linux (Yocto, Buildroot) for more capable gateways. We write power-efficient firmware optimised for battery-powered sensors deployed in remote agricultural fields.

• Sensor Integration & Data Acquisition: Integration of environmental sensors (temperature, humidity, air quality, soil moisture), motion sensors (accelerometer, gyroscope, PIR), imaging (cameras, thermal), location (GPS, BLE beacons, UWB), and industrial sensors (vibration, current, pressure) with Modbus, CAN bus, 4–20mA, and digital interfaces.

• Connectivity Solutions: We design for the right connectivity based on your deployment environment:

• Wi-Fi & Ethernet for factory and building deployments

• Cellular (4G/5G, NB-IoT, LTE-M) for wide-area deployments with eSIM/Multi-IMSI for carrier redundancy

• LoRaWAN for long-range, low-power sensor networks in agricultural and smart city applications

• Bluetooth/BLE for short-range and indoor positioning

• Zigbee/Thread/Matter for smart home and building automation

• Satellite (Iridium, Inmarsat) for truly remote deployments

• Cloud & Edge Integration: We build the device-to-cloud data pipeline — MQTT/CoAP communication, device provisioning with AWS IoT Core, Azure IoT Hub, or Google Cloud IoT Core, device shadow/state management, OTA firmware updates, and edge processing rules. Our team handles the full stack, from device firmware to cloud dashboard.

• OTA Firmware Updates: Secure, atomic over-the-air update mechanisms using MQTT-based delta updates or full image updates with A/B partition schemes. We implement signed firmware images, rollback protection, and update campaign management for fleets of IoT devices.

• Testing & Certification: Environmental testing (temperature, humidity, vibration), EMC/EMI pre-compliance testing, BIS/ISI certification for devices sold, and WPC (Wireless Planning & Coordination) type approval for wireless devices.

IoT Deployment Scenarios

Sector	IoT Application	Benefit
Agriculture	Soil moisture sensors, weather stations, pump controllers	Water conservation, yield improvement for farmers
Manufacturing	Machine vibration monitoring, energy metering, environmental monitoring	Predictive maintenance, energy savings
Smart Buildings	Occupancy sensors, HVAC optimisation, lighting control	30–50% energy savings commercial buildings
Logistics	GPS trackers, cold chain monitoring, fleet telematics	Real-time visibility for supply chains
Smart Cities	Smart parking, waste management sensors, air quality monitoring	Efficient urban management for smart city
Healthcare	Remote patient monitoring, cold storage monitoring, asset tracking	Improved patient outcomes, reduced equipment loss

Deployment Considerations

• Power Reliability: Battery-powered designs with solar charging for rural deployments where grid power is intermittent. Ultra-low power sleep modes achieving months or years of battery life.
• Environmental Hardening: Devices designed for tropical conditions — 45°C+ summer temperatures , monsoon humidity, dust ingress protection (IP65+), and surge protection for lightning-prone areas.
• Cost Sensitivity: We optimise BOM (Bill of Materials) cost for the global market, selecting cost-effective components and designing for local manufacturing/assembly ‘s electronics ecosystem.
• Language & Accessibility: Device interfaces and mobile companion apps with and regional language support for end-users.

IoT Technology Stack

Layer	Technologies
Hardware	ESP32, STM32, Raspberry Pi, Arduino, nRF52, custom PCBs
Firmware	FreeRTOS, Zephyr, Arduino, Embedded C/C++, Rust
Connectivity	Wi-Fi, 4G/5G, NB-IoT, LoRaWAN, BLE, Zigbee
Edge Processing	Edge Impulse, TensorFlow Lite Micro, NanoEdge AI
Cloud	AWS IoT, Azure IoT Hub, GCP IoT Core, ThingsBoard
Dashboards	Grafana, ThingsBoard, AWS QuickSight, custom React dashboards

From a single sensor prototype to a fleet of thousands of connected devices, our IoT team handles the entire lifecycle. Contact us to discuss your IoT project.