Alok Kamal

Sr Embedded Firmware Engineer @Servotech Renewable Power System Limited

New Delhi, IN

14 kW AC Charger (Dual-Gun, Type-2, OCPP 1.6)Developed complete firmware for dual-gun 14 kW AC Type-2 charger, integrated with OCPP 1.6 protocol. Reduced average AC charger cost by ~30% by replacing the external energy meter with a 3-phase metering IC and integrating the Neoway 4G GSM module, along with hardware optimizations.Developed device drivers for DWIN display, metering IC, and 4G GSM module.Protocols: OCPP 1.6, UART, MODBUS RTU, I²C, SPI, TCP/IPMCUs: ESP32-WROOM-D2. 3 kW DC Fast Charger (Bharat DC-001)Designed and developed firmware for 3 kW DC fast charger integrated with a high-efficiency 3 kW rectifier, compliant with Bharat DC-001 standards. Implemented firmware for charging control, authentication, fault handling, and BMS communication. Developed drivers for CAN 2.0B (SAE J1939 standard), DC rectifier communication, DWIN display, and 4G GSM module.Protocols: OCPP 1.6, UART, CAN 2.0, MODBUS RTU, I²C, SPI, TCP/IPMCUs: ESP32-WROOM-D, STM32G0B1RETx3. Solar-Powered DC Charger (3 kW, Multi-Port)Developed firmware for a solar-powered DC charger using a 3 kW DC-DC rectifier, supporting up to 4 EV ports with dynamic load management. Implemented power management across solar + 100 Ah battery (with grid fallback) to maximize uptime and efficiency. Integrated CAN 2.0 communication with rectifier and charger control for real-time telemetry, protection, and set-point control.Protocols: MODBUS TCP, Ethernet, TCP/IP, UART, CAN 2.0, MODBUS RTU, I²C, SPIMCUs: STM32F405RGTx, W55004. Variable Frequency Drive (VFD, Motor Control + IoT)Developed firmware for VFD system to control induction motors using FOC (Field Oriented Control) and V/f control techniques. Implemented cloud connectivity for VFD via Neoway 4G GSM module with MQTT, enabling remote parameter monitoring and control.Protocols: MQTT, HTTP, UART, MODBUS RTUMCUs: STM32F407, ESP32

Indian Institute of Technology, Patna

Master of Technology