The POEM-4 payload
FLOWNOur student team put a payload on POEM-4 — the orbital platform on the spent fourth stage of ISRO’s PSLV‑C60, launched Dec 30, 2024. I wrote the attitude-determination firmware that flew on it.
0.91 attitude correlation
| Compute | STM32H7 · ARM Cortex-M7 |
| RTOS | FreeRTOS — deterministic state machine, ISR-safe queues |
| Sensing | MEMS IMU over I2C, register-level drivers |
| Interfaces | UART telemetry · I2C sensor bus · RS-485 inter-board |
| Qualification | EMI/EMC, vibration, thermal-vacuum, shock |
| Platform | POEM-4 orbital platform, ISRO PSLV-C60 launch vehicle |
Project index
POEM-4 Payload Firmware FLOWN Attitude-determination firmware on our student payload, flown on the POEM-4 platform aboard ISRO's PSLV-C60 (Dec 30, 2024). STM32H7, FreeRTOS, 0.91 attitude correlation in orbit-representative testing. CubeSat Flight Software IN DEVELOPMENT Leading the software subsystem for MIT-WPU's first student-built CubeSat: NASA cFS on embedded Linux (STM32MP257 OBC) plus FreeRTOS and bare-metal subsystem boards. Targeting launch in 2027. CanSat & Model Rocketry Avionics EXCELLENT GRADE Software Lead for two IN-SPACe student competitions — a CanSat, and a model rocket carrying a second CanSat as its deployable payload — built on a shared dual-MCU avionics stack (3 of 4 PCBs common). SwarmOTA RESEARCH · IN PROGRESS A gossip-based peer-to-peer protocol for decentralized firmware-over-the-air updates across IoT microcontrollers — BitTorrent-style rarest-first chunk selection adapted for ESP32 and Pico W. Targeting a research paper. Marine Organism Detection NATIONAL WINNER Real-time marine organism classification from live microscopy video on a Raspberry Pi. National Winner, Smart India Hackathon 2025, Hardware Edition (Government of India). OpenEnv Firmware Debug Environment COMPLETED A reinforcement-learning environment where AI agents debug realistic firmware faults on a simulated ARM Cortex-M — five scenarios with register-level STM32 modeling and cascading failures. Q-Force CACC 1ST PLACE Hybrid classical + quantum-inspired graph ML system for cross-asset financial markets — MAPE cut from 7.8% to 4.9%, crash recall lifted from 68% to 82%. 1st place, CACC Coder's Arena 2025. Telemetry & Telecommand Stack COMPLETED Reusable C libraries for packet framing, CRC-16 integrity, and ACK/NACK reliability over XBee, GSM/4G, and LoRa — plus the Python ground-station tools to talk to them. ArduCAM Driver on STM32H7 COMPLETED An SPI camera driver written from scratch with DMA double-buffering, FatFS SD logging, and simultaneous UART streaming — frame timing validated on a logic analyzer.
