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$30 USD / hour
Flag of INFlag of IN
ahmedabad,
india
$30 USD / hour
It's currently 6:57 PM here
Joined October 30, 2018
2 Recommendations

Jitendra Z.

@jitendracf

monthly-level-two.svg
5.0 (16 reviews)
5.0 (16 reviews)
5.1
5.1
$30 USD / hour
Flag of INFlag of IN
ahmedabad,
india
$30 USD / hour
94%
Jobs Completed
94%
On Budget
94%
On Time
27%
Repeat Hire Rate

PCB Designer | Firmware Developer | IoT Expert

I have more than 10 years of experience working with analog and digital circuit design. I am proficient in PCB designing & prototyping, embedded systems, microcontroller design and programming. Embedded Systems Expertise: - PCB design upto Six Layers - Altium Designer, Cadsoft Eagle, Kicad - Requirement analysis and research - Firmware development on micro-controllers/microprocessors - Micro-controllers/processors - Wireless drivers and applications for WiFi, RF, BLE, GSM/GPS, LTE, NB-IOT, RFID, NFC, Lora - Hands on experience on I2C, SPI, UART, RS485, CAN, TCP/IP, SDI-12 - IOT product development - Hands on experience using Raspberry Pi zero/2/3/4 - Sensors integration - Vehicle Health System using OBD-II - Embedded C, C++, Python and Shell Scripting - Windows, Linux, TI-RTOS, TI-SIMPLELINK, Free RTOS, Zephyr - Microvision Keil, Code Composer Studio, IAR Workbench for 8051 and ARM, Avr Studio, MPLABx IDE, nRF Studio, Arduino IDE, Segger Studio, Simplicity studio - Hands on experience in Arduino development Just give me your idea and I will transform it into a functioning product with fully tested and manufacturing ready package.
Freelancer
Electronics Engineers
India

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Portfolio Items

The main function of this project was to control appliances using capacitive touch buttons and send status to server using MQTT over WiFi(ESP32). The board is powered from 230V AC and all the appliances are rated 210-240 V AC,20 Amps.There are three PCBs stack to reduce form factor of device. Dimension was 40mm x 40mm.
4 Gang Switch
The main function of this project was to control appliances using capacitive touch buttons and send status to server using MQTT over WiFi(ESP32). The board is powered from 230V AC and all the appliances are rated 210-240 V AC,20 Amps.There are three PCBs stack to reduce form factor of device. Dimension was 40mm x 40mm.
4 Gang Switch
The main function of this project was to control appliances using capacitive touch buttons and send status to server using MQTT over WiFi(ESP32). The board is powered from 230V AC and all the appliances are rated 210-240 V AC,20 Amps.There are three PCBs stack to reduce form factor of device. Dimension was 40mm x 40mm.
4 Gang Switch
This PCB has been designed to control compressor automatically. It has capability to get outer temperature data in form of ADC , and operate(turn ON/OFF) compressor based on temperature readings. There are LED indication for compressor running status with inputs.
Automatic Compressor Controller
This PCB has been designed to control compressor automatically. It has capability to get outer temperature data in form of ADC , and operate(turn ON/OFF) compressor based on temperature readings. There are LED indication for compressor running status with inputs.
Automatic Compressor Controller
It is an Embedded Solution which can be used with PLC device to convert its editable test reports (i.e. csv files) to non-editable test reports(i.e. pdf etc.) with proper formats.
- Raspberry PI acts as an access point. It has its own web server with rich GUI and gives user friendly interface.
- User can connect to access point and download non editable reports using GUI.
- Device also takes backup of reports automatically and gives indication on memory exceptions.
PLC Data Report Generation - Wireless
- Webserver is the product which would monitor and control your remote units/ equipmentsusing web interface.
- Webserver is an advanced yet simplified Remote Terminal Unit and running inside a simple microcontroller.
- Taking advantage of the reliable, internet, webserver device becomes a remotely accessible unit from any part of the world.
- Webserver device comprised of Microchip TCP/IP stack and in addition it also contains a Modbus TCP server.
- The inputs present on Webserver device can be used for monitoring of external devices or connecting sensors (digital).
- Alarm conditions can be configured using a simple web interface for monitoring of these inputs.
- Webserver also gives you the freedom to control the states of the connected outputs using web browser.
- IDE Used : Mplab X IDE
Webserver - Monitoring and Control
This is an Internet of Things (IOT) where a microcontroller device was interfaced with multiple sensors like temperature, water level, humidity etc.
-The controller module has a 3G GSM module interfaced which provides the high speed internet connectivity. Controller will collect the data from sensors and upload all the data to cloud.
-Cloud is a live server which collects data from different controllers which are on the field. Cloud provides functionality to view the data on charts, tables, sorting of data, alert system, device configuration.
-It has a Bluetooth connectivity over which it can communicate with a mobile device for troubleshooting and configuration.
I have designed complete prototype which includes:
- Component selection
- Schematic and pcb layout design
- Firmware development
EDA Tool: Cadsoft eagle
IDE: MPLabx, IAR Workbench for 8051
Smart Data Logger
This is an Internet of Things (IOT) where a microcontroller device was interfaced with multiple sensors like temperature, water level, humidity etc.
-The controller module has a 3G GSM module interfaced which provides the high speed internet connectivity. Controller will collect the data from sensors and upload all the data to cloud.
-Cloud is a live server which collects data from different controllers which are on the field. Cloud provides functionality to view the data on charts, tables, sorting of data, alert system, device configuration.
-It has a Bluetooth connectivity over which it can communicate with a mobile device for troubleshooting and configuration.
I have designed complete prototype which includes:
- Component selection
- Schematic and pcb layout design
- Firmware development
EDA Tool: Cadsoft eagle
IDE: MPLabx, IAR Workbench for 8051
Smart Data Logger
The main objective of this product was to build smart OBD (On-Board Diagnostic) device which can be used in automobile industry. This is a step for autmobile industry towards IOT. This device comprises of:
-MCU - communicate with car on CAN Bus and gathers car's health i.e. engine temperature, speed, torque, oxygen sensor data, fuel data, pressure data and many more..
- Bluetooth - communicate with mobile app to send car's data
- GSM - to send data to servers using http
- GPS - to get car's real-time location
- SD card - to store data offline in csv
I have developed this prototype from component selections to pcb layout and firmware development.
EDA Tools: Cadsoft eagle and Altium Desinger, Gerbview
IDE: MPLab X, Code composer studio
OBD-II device with BLE, GPS and GSM
The main objective of this product was to build smart OBD (On-Board Diagnostic) device which can be used in automobile industry. This is a step for autmobile industry towards IOT. This device comprises of:
-MCU - communicate with car on CAN Bus and gathers car's health i.e. engine temperature, speed, torque, oxygen sensor data, fuel data, pressure data and many more..
- Bluetooth - communicate with mobile app to send car's data
- GSM - to send data to servers using http
- GPS - to get car's real-time location
- SD card - to store data offline in csv
I have developed this prototype from component selections to pcb layout and firmware development.
EDA Tools: Cadsoft eagle and Altium Desinger, Gerbview
IDE: MPLab X, Code composer studio
OBD-II device with BLE, GPS and GSM

Reviews

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Showing 1 - 5 out of 16 reviews
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5.0
$200.00 USD
An absolute pleasure working with Jitendra. Highly professional and communicates constantly progress. I look forward to working with him again.
Electronics
Microcontroller
Arduino
R
Flag of ZA Robert C. @robert384
8 months ago
0.0
€1,650.00 EUR
The project is not completed according to the dispute
Electronics
Microcontroller
Electrical Engineering
Embedded Software
Arduino
M
Flag of DE Michael I. @milgenfritz
1 year ago
5.0
€200.00 EUR
Jitendra work very well, I recommande for all people. He is a good professional and polite. Sure we work more toghether.
C Programming
Electronics
Microcontroller
Electrical Engineering
+1 more
M
Flag of ES Manel R. @manel87
1 year ago
5.0
£120.00 GBP
Excellent freelancer, worked very quickly and efficiently. He claimed to understand the issue when he bid, he was absolutely spot on and fixed all my issues without a hitch - would hire again for sure
C Programming
Electronics
Microcontroller
Electrical Engineering
Arduino
User Avatar
Flag of GB Josh E. @Joshmeasurable
1 year ago
5.0
$650.00 USD
Jitendra is very professional and produced high quality work. I would highly recommend him and will be using him for future projects.
Electronics
Microcontroller
Electrical Engineering
PCB Layout
Circuit Design
Q
Flag of US Jeff K. @questinfo2
1 year ago

Experience

Tech Lead

CoreFragment Technologies Pvt Ltd
Jul 2015 - Present
Responsibilities: - Client Handling - Client Communication - Requirement Understanding - Team management - Project Execution (Hardware Design) - Firmware Development if required.

Sr. Embedded Engineer

Saltriver Infosystems Pvt Ltd
May 2011 - Jun 2015 (4 years, 1 month)
Responsibilities: - Client Handling - Client Communication - Requirement Understanding - Team management - Project Execution

Education

B.Tech

India 2007 - 2011
(4 years)

Qualifications

Developer of the year

Saltriver Infosystems Pvt Ltd
2013
I have been honored as best developer of the year.

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preferredfreelancer-1.png Preferred Freelancer Program SLA 1 84% c-prog-3.png C Programming 3 75%

Top Skills

Electronics
14
Microcontroller
14
Electrical Engineering
12
Arduino
11
C Programming
7

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