Samuel

Corrective maintenance engineer

Dataplex • Período integral

Oct 2022 - Aug 2023 • 10 mos

Dataplex is a company that offers integral solutions on power electronic systems for accumulation, control and electric energy handle. Activities: - Repair (corrective maintenance) damaged battery chargers - Calibrate and assembly new charger models to sell - Help to design and debug firmware in C language for PIC micro controllers Achievements: - Successful corrective maintenance of 99.99% of damaged chargers assigned to me; the only one I couldn't fix was due to a problem in the PCB design, which was impossible to repair without changing the PCB. I achieved all this with a low budget and tools in poor condition. - I slightly modified the way to calibrate the current of the chargers so that the error between the nominal current and the measurement by the clamp meter decreased by approximately 50%.

Hardware developer and corrective maintenance engineer

Instituto Venezolano de Investigaciones Científicas • Período integral

Oct 2014 - Mar 2022 • 7 yrs 5 mos

The Statistical Physics Lab of The Venezuelan Institute of Scientific Research, is a laboratory in the Physics Center, it's line of research is granular media. Devices Implementation and Design for Physics Laboratory, and some other solutions on electronics field. Hardware develop starting from 0 or with Arduino boards. PCB design with Eagle CAD or KiCAD, PIC programming (firmware) in embedded C language or assembly. Corrective maintenance of UPS and any damaged circuit boards that needed to be repared. Devices, components, sensors or boards used on develops: - Stepper motors and his drivers - ESP8266 (wifi) - MPU6050 (accelerometer) - OPAM - Encoder - Infrared sensors - Servo motor (DC) - Mosfets and bjt's Used tools: Oscilloscope, tester, signal generators, computers.

Firmware and PCB designer

Fiverr • Freelance

Oct 2019 - Feb 2022 • 2 yrs 4 mos

Fiverr is a platform where software, firmware, graphic and some others designers can sell his service using this web as an intermediate between the person who needs his service and him. Design MIPS assembly, x86 assembly and PIC assembly code. - Redesign of a database reader in C language with his usage manual (installer created too) - Debug a PIC microcontroller firmware to look for his functionality and design a firmware to achieve that functionality. - All the rest of created code: https://github.com/sdpb21/assembly