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Satyajit R.

@cpp2048

monthly-level-three.svgverified-v2.svg
5.0
123
7.1
7.1
95%

Embedded Systems & Software Technology Services

$60 USD / Hour
・
Flag of
India (6:44 AM)
・
Joined on July 30, 2007
$60 USD / Hour
・
I've been a full-time freelancer for the last 15 years, designing numerous products for both industrial and consumer markets. I also assist with hardware interfacing software development and firmware development using the GCC toolchain (for both single and high-performance multi-core systems). My expertise extends to the analog domain as well. With an in-house SMD assembly facility and a robust inventory of passive components (0603) and many active components, I can support rapid prototype testing. Strengths: 1. Hardware Design: Proficient with Altium, KiCad, and Eagle. 2. Firmware Development: Skilled in GCC, SDCC, CodeComposerStudio, and various vendor-specific toolchains. 3. Application Development: Experienced with MSVC, Borland C, GCC, and MinGW. 4. Connectivity Layers: Expertise in Ethernet, PCIe, Wi-Fi, GSM, LTE, ISM Radios, LoRa, BLE, USB, and wired industrial protocols (RS485, RS422, CAN, LIN). 5. Communication Protocol Layers. 6. Precision Analog Electronics and Measurements. 7. Precision Instruments for Product Testing. 8. ARM M Cores, Specialty STM32, TI DSP, C2000 Cores, FreeRTOS. 9. Business Ethics: Ensuring the protection of your intellectual property. 10. Commitment to Long-Term Product Support and Quality Assurance. I provide comprehensive solutions for product design, hardware and firmware development, and production support. I have strong connections with Chinese manufacturers and component supply chains, facilitating low to mid-volume productions. Feel free to reach out to discuss your requirements without any obligation.
Verifications
On time
91%
On budget
97%
Accept rate
91%
Repeat hire rate
21%
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Portfolio

Portfolio

11585317
Load Bank Power Module. Details coming soon...
Electronic Load Bank
11382932
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
11382916
It's kind of R&D product design of a Motor Control. It's part of Smart Home Automation product and Intelligent Pump controller. Hardware Design, Firmware Development and product Testing.
R&D Product Design
It's kind of R&D product design of a Motor Control. It's part of Smart Home Automation product and Intelligent Pump controller. Hardware Design, Firmware Development and product Testing.
R&D Product Design
It's kind of R&D product design of a Motor Control. It's part of Smart Home Automation product and Intelligent Pump controller. Hardware Design, Firmware Development and product Testing.
R&D Product Design
11382909
Hardware design, Firmware development, Quick inhouse Prototype Making as well as product testing. ARM M Core based development. It turns on/off the load and it measures Voltage, Current, Power as well as PF of the connected load and sensed remotely. Hall Based Current sensing.
Product Design, Development and Testing
Hardware design, Firmware development, Quick inhouse Prototype Making as well as product testing. ARM M Core based development. It turns on/off the load and it measures Voltage, Current, Power as well as PF of the connected load and sensed remotely. Hall Based Current sensing.
Product Design, Development and Testing
10233221
Testing prototype for 1.3KW 4 Stage Interleaved MPPT Battery charger with Wi-Fi connectivity. Texas Instrument's C2000 Based design. Hardware design, firmware development as well as product testing.
1.3KW Interleaved MPPT Battery Charger
Testing prototype for 1.3KW 4 Stage Interleaved MPPT Battery charger with Wi-Fi connectivity. Texas Instrument's C2000 Based design. Hardware design, firmware development as well as product testing.
1.3KW Interleaved MPPT Battery Charger
Testing prototype for 1.3KW 4 Stage Interleaved MPPT Battery charger with Wi-Fi connectivity. Texas Instrument's C2000 Based design. Hardware design, firmware development as well as product testing.
1.3KW Interleaved MPPT Battery Charger
10233193
RS485 Modbus to GSM Bridge with an external UART port to stream the data back and forth via MQTT from portal.
Product Design and Firmware Development
11585317
Load Bank Power Module. Details coming soon...
Electronic Load Bank
11382932
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
Custom HMI Development based on STM32H7 and RGB TFT Interface. It also contains Wi-Fi connectivity using ESP32 Module and Data logging feature that collects data from CAN Bus and saves on SD Card. Hardware Design, Firmware development and Product Testing.
Custom HMI Development
11382916
It's kind of R&D product design of a Motor Control. It's part of Smart Home Automation product and Intelligent Pump controller. Hardware Design, Firmware Development and product Testing.
R&D Product Design
It's kind of R&D product design of a Motor Control. It's part of Smart Home Automation product and Intelligent Pump controller. Hardware Design, Firmware Development and product Testing.
R&D Product Design
It's kind of R&D product design of a Motor Control. It's part of Smart Home Automation product and Intelligent Pump controller. Hardware Design, Firmware Development and product Testing.
R&D Product Design
11382909
Hardware design, Firmware development, Quick inhouse Prototype Making as well as product testing. ARM M Core based development. It turns on/off the load and it measures Voltage, Current, Power as well as PF of the connected load and sensed remotely. Hall Based Current sensing.
Product Design, Development and Testing
Hardware design, Firmware development, Quick inhouse Prototype Making as well as product testing. ARM M Core based development. It turns on/off the load and it measures Voltage, Current, Power as well as PF of the connected load and sensed remotely. Hall Based Current sensing.
Product Design, Development and Testing
10233221
Testing prototype for 1.3KW 4 Stage Interleaved MPPT Battery charger with Wi-Fi connectivity. Texas Instrument's C2000 Based design. Hardware design, firmware development as well as product testing.
1.3KW Interleaved MPPT Battery Charger
Testing prototype for 1.3KW 4 Stage Interleaved MPPT Battery charger with Wi-Fi connectivity. Texas Instrument's C2000 Based design. Hardware design, firmware development as well as product testing.
1.3KW Interleaved MPPT Battery Charger
Testing prototype for 1.3KW 4 Stage Interleaved MPPT Battery charger with Wi-Fi connectivity. Texas Instrument's C2000 Based design. Hardware design, firmware development as well as product testing.
1.3KW Interleaved MPPT Battery Charger
10233193
RS485 Modbus to GSM Bridge with an external UART port to stream the data back and forth via MQTT from portal.
Product Design and Firmware Development
Changes saved
5.0 · 123 Reviews
Reviews
User Avatar
current sensor design • $30 USD
He is a complete professional. He delivered the job on time and with a quality presentation and explanation as promised. He also did not refrain from providing assistance after the job was completed. I thank him very much.
Cem Yasam A.
@cem501
•
Flag of
Seyhan, Turkey
•
6 days ago
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