Sanjay Nirmal
Analytical and curious embedded systems engineer with a strong foundation in electronics, firmware, and software integration.
About
Analytical and curious embedded systems engineer with a strong foundation in electronics, firmware, and software integration. I enjoy diving deep into how things work — from microcontroller interfaces and communication protocols to real-time data systems. I approach problems methodically, test ideas rigorously, and refine until they perform reliably. Known for being detail-oriented, adaptable, and calm under pressure, I take ownership of my work and keep learning fast. My goal is to keep building intelligent, connected systems that bridge hardware and software seamlessly.
- Joined November 2025
Industry experience
- Software & Internet
- Manufacturing
- Healthcare
- Education
- Professional Services
Work experience
Designed wireless system using PIC18 & ESP-01; sensor + keypad data via UART to ESP; transmitted via MQTT/TCP/IP/HTTP to remote device; displayed on LCD (4-bit mode). Interface MAX30102 & MPU6050 via I2C; HR/step data transmitted over UART for monitoring. Improved communication reliability and reduced latency by 40% by identifying UART bottleneck, refactoring the data transmission protocol, optimizing timing, and applying signal filtering to ensure robust data integrity.
Developed a smart cart using Arduino Nano and EM-18 RFID for automated billing and item management; configured LCD for real-time item display; enabled UPI payment via SIM 800L GSM module; reduced checkout time by implementing RFID re-scanning logic for add/remove functionality.
Programmed an embedded system in C to read ADC data from temperature, humidity, and CO2 sensors; calculated averages; applied threshold-based control logic to activate HVAC, fan, sprinkler, and stepper motor ventilation systems.
Education
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