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Khalid K.

@kamilkhalid

5.0
5
4.6
4.6
100%

Electronics Engineer(Hardware/Software)

$40 USD / Hour
・
Flag of
Morocco (4:21 PM)
・
Joined on March 5, 2019
$40 USD / Hour
・
Hello. Nice to meet you. As an electronic engineer, I have been working in PCB design/layout and firmware programming field for 10+ years. Here are some of the experiences that I worked ago. - Schematic and PCB Layout using Altium designer, Cadence, Eagle, and so on. - SolidWorks Enclosure, AutoCad design - Matlab simulation - Multi Layer, Flexible, High speed PCB design - Exceptional C++/C /C# programming skills. - FPGA design using Verilog/VHDL (Xilinx ISE/XPS/SDK/Vivado, Altera Quartus, iCECube) - ARM, DSP, MCUs, Arduino experience. - Arm cores: ATSAM, STM32, PIC32, A13, FreeScale, MSP, NXP - MPU: Pic16F, Pic18F, Pic33F, Atmega8,16,128,32,8051,8951,8052,80251 - Single board computer: Raspbery pi, Beaglebone, NanoPi - Strong with UART, I2C, SPI, BLE,BT, GSM/GPRS/GPS, xBee, ZigBee. - Especially full experience for BLE HM10, HC05, ESP32, DA14580, nRF52832, 52840, BlueNRG, Once you hire me, expected me to help your business like I 'm growing it as my own. I would love to hear from you. Kindness regards.
Verifications
On time
100%
On budget
100%
Accept rate
83%
Repeat hire rate
10%
Freelancer Electronics Engineers Morocco
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Portfolio

Portfolio

11486481
Set AC ON and OFF time (in seconds, via variable thru the Arduino interface). Set DC ON and OFF time (in seconds, via variable thru the Arduino interface). Set cycle count at zero for AC and DC test solenoids. Set AC temp and DC temp alarm limits.
Solenoid Testing Circuit
Set AC ON and OFF time (in seconds, via variable thru the Arduino interface). Set DC ON and OFF time (in seconds, via variable thru the Arduino interface). Set cycle count at zero for AC and DC test solenoids. Set AC temp and DC temp alarm limits.
Solenoid Testing Circuit
Set AC ON and OFF time (in seconds, via variable thru the Arduino interface). Set DC ON and OFF time (in seconds, via variable thru the Arduino interface). Set cycle count at zero for AC and DC test solenoids. Set AC temp and DC temp alarm limits.
Solenoid Testing Circuit
10534218
The Display Unit (DU) is a LCD display which conveys state of a systems status for an operator to monitor the system’s operation and make adjustments as required. It accepts data Bytes in ASCI Hexadecimal format from a system host computer using an Ethernet input and constructs messages for the LCD display by converting the hex information into characters as defined by a set of Lookup Tables. Character generation, Display RAM addressing, Cursor Scrolling, Blanking and Highlighting are all included. Character tables can be changed over the Ethernet input by the host computer using PSPC. Image intensity is controlled by varying the PWM driver backlight duty cycle with the DU MCU output set by the input data.
Display Unit PCD
The Display Unit (DU) is a LCD display which conveys state of a systems status for an operator to monitor the system’s operation and make adjustments as required. It accepts data Bytes in ASCI Hexadecimal format from a system host computer using an Ethernet input and constructs messages for the LCD display by converting the hex information into characters as defined by a set of Lookup Tables. Character generation, Display RAM addressing, Cursor Scrolling, Blanking and Highlighting are all included. Character tables can be changed over the Ethernet input by the host computer using PSPC. Image intensity is controlled by varying the PWM driver backlight duty cycle with the DU MCU output set by the input data.
Display Unit PCD
The Display Unit (DU) is a LCD display which conveys state of a systems status for an operator to monitor the system’s operation and make adjustments as required. It accepts data Bytes in ASCI Hexadecimal format from a system host computer using an Ethernet input and constructs messages for the LCD display by converting the hex information into characters as defined by a set of Lookup Tables. Character generation, Display RAM addressing, Cursor Scrolling, Blanking and Highlighting are all included. Character tables can be changed over the Ethernet input by the host computer using PSPC. Image intensity is controlled by varying the PWM driver backlight duty cycle with the DU MCU output set by the input data.
Display Unit PCD
10443405
LED RF circuit- the leds need to be driven at 4.5 volts and 5050 type - RGB Send RF off command to all Leds and devices. The BT IC need to be stereo -left CHannel to the Speaker,right to pad connector or the 2nd PCB to connect. Light Switch/Buton - need track to Pad to connect 2nd PCB. the Button will be to turn of or reset the LEDS Sequence will be press Light Button. Button On power - powers on Both PCB, Sends Power to Connector for extra PCB.
BT LED Speaker Board
LED RF circuit- the leds need to be driven at 4.5 volts and 5050 type - RGB Send RF off command to all Leds and devices. The BT IC need to be stereo -left CHannel to the Speaker,right to pad connector or the 2nd PCB to connect. Light Switch/Buton - need track to Pad to connect 2nd PCB. the Button will be to turn of or reset the LEDS Sequence will be press Light Button. Button On power - powers on Both PCB, Sends Power to Connector for extra PCB.
BT LED Speaker Board
LED RF circuit- the leds need to be driven at 4.5 volts and 5050 type - RGB Send RF off command to all Leds and devices. The BT IC need to be stereo -left CHannel to the Speaker,right to pad connector or the 2nd PCB to connect. Light Switch/Buton - need track to Pad to connect 2nd PCB. the Button will be to turn of or reset the LEDS Sequence will be press Light Button. Button On power - powers on Both PCB, Sends Power to Connector for extra PCB.
BT LED Speaker Board
10397456
- CM4 connector - Mini PCI-E socket with SIM card holder - 2 x Power input (~10 to ~ 30 Volt). State of both connected to GPIO pins as signal (so reduced to some ~2 Volts) - 2 x I2C exposed - Battery charging controller. The main power reduced to 5 V, then connected through the battery charging controller back to the board. - MicroSD card socket. - SPI exposed - Few (~5) additional GPIO pins exposed.
CM4 Carrier Board
- CM4 connector - Mini PCI-E socket with SIM card holder - 2 x Power input (~10 to ~ 30 Volt). State of both connected to GPIO pins as signal (so reduced to some ~2 Volts) - 2 x I2C exposed - Battery charging controller. The main power reduced to 5 V, then connected through the battery charging controller back to the board. - MicroSD card socket. - SPI exposed - Few (~5) additional GPIO pins exposed.
CM4 Carrier Board
10298896
The schematic below is from the receiver (light fitting end). Actually there are 7 LED drivers inside the light fitting to control Red, Green Blue and 4 White channels of the light. Each LED driver circuit is bypassed with the same circuit shown below, so we have 7 drivers all in parallel from Vin. When installed in the venue, there will be 4 light fittings on the line, so 5 devices communicating, and 28 LED drivers.
LED Driver
The schematic below is from the receiver (light fitting end). Actually there are 7 LED drivers inside the light fitting to control Red, Green Blue and 4 White channels of the light. Each LED driver circuit is bypassed with the same circuit shown below, so we have 7 drivers all in parallel from Vin. When installed in the venue, there will be 4 light fittings on the line, so 5 devices communicating, and 28 LED drivers.
LED Driver
10298820
Input offers full galvanic isolation between the PV string and the DC bus. The SPOT is compatible with any PV string voltage including 600, 1000 and 1500 volt PV strings.
DC-DC Optimizer, Solar storage
11486481
Set AC ON and OFF time (in seconds, via variable thru the Arduino interface). Set DC ON and OFF time (in seconds, via variable thru the Arduino interface). Set cycle count at zero for AC and DC test solenoids. Set AC temp and DC temp alarm limits.
Solenoid Testing Circuit
Set AC ON and OFF time (in seconds, via variable thru the Arduino interface). Set DC ON and OFF time (in seconds, via variable thru the Arduino interface). Set cycle count at zero for AC and DC test solenoids. Set AC temp and DC temp alarm limits.
Solenoid Testing Circuit
Set AC ON and OFF time (in seconds, via variable thru the Arduino interface). Set DC ON and OFF time (in seconds, via variable thru the Arduino interface). Set cycle count at zero for AC and DC test solenoids. Set AC temp and DC temp alarm limits.
Solenoid Testing Circuit
10534218
The Display Unit (DU) is a LCD display which conveys state of a systems status for an operator to monitor the system’s operation and make adjustments as required. It accepts data Bytes in ASCI Hexadecimal format from a system host computer using an Ethernet input and constructs messages for the LCD display by converting the hex information into characters as defined by a set of Lookup Tables. Character generation, Display RAM addressing, Cursor Scrolling, Blanking and Highlighting are all included. Character tables can be changed over the Ethernet input by the host computer using PSPC. Image intensity is controlled by varying the PWM driver backlight duty cycle with the DU MCU output set by the input data.
Display Unit PCD
The Display Unit (DU) is a LCD display which conveys state of a systems status for an operator to monitor the system’s operation and make adjustments as required. It accepts data Bytes in ASCI Hexadecimal format from a system host computer using an Ethernet input and constructs messages for the LCD display by converting the hex information into characters as defined by a set of Lookup Tables. Character generation, Display RAM addressing, Cursor Scrolling, Blanking and Highlighting are all included. Character tables can be changed over the Ethernet input by the host computer using PSPC. Image intensity is controlled by varying the PWM driver backlight duty cycle with the DU MCU output set by the input data.
Display Unit PCD
The Display Unit (DU) is a LCD display which conveys state of a systems status for an operator to monitor the system’s operation and make adjustments as required. It accepts data Bytes in ASCI Hexadecimal format from a system host computer using an Ethernet input and constructs messages for the LCD display by converting the hex information into characters as defined by a set of Lookup Tables. Character generation, Display RAM addressing, Cursor Scrolling, Blanking and Highlighting are all included. Character tables can be changed over the Ethernet input by the host computer using PSPC. Image intensity is controlled by varying the PWM driver backlight duty cycle with the DU MCU output set by the input data.
Display Unit PCD
10443405
LED RF circuit- the leds need to be driven at 4.5 volts and 5050 type - RGB Send RF off command to all Leds and devices. The BT IC need to be stereo -left CHannel to the Speaker,right to pad connector or the 2nd PCB to connect. Light Switch/Buton - need track to Pad to connect 2nd PCB. the Button will be to turn of or reset the LEDS Sequence will be press Light Button. Button On power - powers on Both PCB, Sends Power to Connector for extra PCB.
BT LED Speaker Board
LED RF circuit- the leds need to be driven at 4.5 volts and 5050 type - RGB Send RF off command to all Leds and devices. The BT IC need to be stereo -left CHannel to the Speaker,right to pad connector or the 2nd PCB to connect. Light Switch/Buton - need track to Pad to connect 2nd PCB. the Button will be to turn of or reset the LEDS Sequence will be press Light Button. Button On power - powers on Both PCB, Sends Power to Connector for extra PCB.
BT LED Speaker Board
LED RF circuit- the leds need to be driven at 4.5 volts and 5050 type - RGB Send RF off command to all Leds and devices. The BT IC need to be stereo -left CHannel to the Speaker,right to pad connector or the 2nd PCB to connect. Light Switch/Buton - need track to Pad to connect 2nd PCB. the Button will be to turn of or reset the LEDS Sequence will be press Light Button. Button On power - powers on Both PCB, Sends Power to Connector for extra PCB.
BT LED Speaker Board
10397456
- CM4 connector - Mini PCI-E socket with SIM card holder - 2 x Power input (~10 to ~ 30 Volt). State of both connected to GPIO pins as signal (so reduced to some ~2 Volts) - 2 x I2C exposed - Battery charging controller. The main power reduced to 5 V, then connected through the battery charging controller back to the board. - MicroSD card socket. - SPI exposed - Few (~5) additional GPIO pins exposed.
CM4 Carrier Board
- CM4 connector - Mini PCI-E socket with SIM card holder - 2 x Power input (~10 to ~ 30 Volt). State of both connected to GPIO pins as signal (so reduced to some ~2 Volts) - 2 x I2C exposed - Battery charging controller. The main power reduced to 5 V, then connected through the battery charging controller back to the board. - MicroSD card socket. - SPI exposed - Few (~5) additional GPIO pins exposed.
CM4 Carrier Board
10298896
The schematic below is from the receiver (light fitting end). Actually there are 7 LED drivers inside the light fitting to control Red, Green Blue and 4 White channels of the light. Each LED driver circuit is bypassed with the same circuit shown below, so we have 7 drivers all in parallel from Vin. When installed in the venue, there will be 4 light fittings on the line, so 5 devices communicating, and 28 LED drivers.
LED Driver
The schematic below is from the receiver (light fitting end). Actually there are 7 LED drivers inside the light fitting to control Red, Green Blue and 4 White channels of the light. Each LED driver circuit is bypassed with the same circuit shown below, so we have 7 drivers all in parallel from Vin. When installed in the venue, there will be 4 light fittings on the line, so 5 devices communicating, and 28 LED drivers.
LED Driver
10298820
Input offers full galvanic isolation between the PV string and the DC bus. The SPOT is compatible with any PV string voltage including 600, 1000 and 1500 volt PV strings.
DC-DC Optimizer, Solar storage
Changes saved
5.0 · 5 Reviews
Reviews
F
Suche Profi für ein Projekt mit QI-Ladung • €800 EUR
Good work, very fast communication
Stefan Z.
@Fabuloes
•
Flag of
Planegg, Germany
•
1 year ago
Share
User Avatar
H-Bridge DC Motor Drive • $250 USD
Khalid had a very solid understanding of the project and came up with the schematic quickly. With just a few tweaks resulting from the dialog between us, he completed the project in substantially less time than allotted. We have several projects in front of us, and I'm happy to have connected with Khalid.
Brian W.
@bri4eng2
•
Flag of
Odessa, United States
•
2 years ago
Share
N
CM4 Carrier Board Development • €500 EUR
Delivered very fast. Very good communication. We are definitely going to work together in the future. Great job
Alina B.
@NeoFox2000
•
Flag of
Hamm, Germany
•
2 years ago
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A
Project for Khalid K • $300 CAD
Excellent work, i would definitely recommend
Closed User
@aleksandart450
•
Flag of
,
•
2 years ago
Share
A
LED Circuit design • $100 USD
Delivered on time. Very serious and professional. Friendly as well. Great communication.
Closed User
@aleksandart450
•
Flag of
,
•
2 years ago
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Education
Université Hassan II Aïn Chock de Casablanca
2010 - 2013
•
3 years
M.Sc Electronic Engineer(Hardware, Embedded System, Software)
Flag of
Morocco
2010 - 2013
•
3 years
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