DLMS/COSEM meter reader
Reads meter data over RS-485 and HDLC on STM32, with a Python version for a shared bus.
Firmware Engineer & Head of R&D
Mehdi Sadeghi
Head of R&D at Behamad. I design the firmware, hardware and back-end services behind smart meters, IoT devices and home automation products.
About
I am an embedded systems engineer with a master's degree in Computer Architecture. I work on IoT hardware, IoT platforms and back-end services, and I am drawn to where embedded systems meet AI: machine learning, deep learning, computer vision and reinforcement learning.
Smart metering
Reading and processing meter data with standard protocols.
IoT devices
Connected devices over LoRaWAN, Wi-Fi and SIP.
Home automation
Control for curtains, lighting and temperature.
Experience
- Jul 2023 – Present
Head of Research and Development
Behamad
Lead firmware development and R&D for smart metering, IoT and home automation products.
- Nov 2019 – Present
Hardware Engineer
Behbood Ertebat Chehelsotoun, Isfahan Science and Technology Town
- Apr 2019 – Nov 2019
Hardware Engineer (part-time)
Pishro Fanavar, Isfahan Science and Technology Town
Skills
- Microcontrollers
- STM32, ESP32, Holtek
- Protocols
- RS-485, I2C, HDLC, DLMS/COSEM, LoRaWAN, SIP
- Software
- C/C++, FreeRTOS, Arduino-ESP32, PlatformIO, Python, GuruxDLMS, OpenWRT
- Interests
- Machine Learning, Deep Learning, Computer Vision, Reinforcement Learning
Projects
Cooling thermostat
A dual-MCU system linking a Holtek and an ESP32 over I2C.
Smart curtain controller
Curtain control on ESP32 with FreeRTOS tasks and half-duplex RS-485.
SIP paging client
A SIP client on ESP32 with PCM5102 DAC audio output, packaged as an Arduino library.
AC dimmer
An ESP32 AC dimmer migrated to Arduino-ESP32 core v3.
LoRaWAN AT commands
AT command handling and serial number storage on STM32.
Education
- Oct 2021 – Aug 2024
M.Sc., Computer Architecture
Iran University of Science and Technology
- 2015 – 2019
B.Sc., Electrical and Electronics Engineering
University of Isfahan