My Portfolio

Data Glove

This project aims to present the development of a prototype of a low-cost and low consumption teleoperation system, capable of making human movements acquisitions from the hand and forearm of a human operator, which can be adapted for different applications. The proposed device consists of three main elements: mechanical structure printed in 3D, sensing system, and teleoperation system. The 3D structure is designed to mold human members (hand and forearm), ensuring mechanical stability and comfort to the user. The sensing of the equipment, which has the function of promoting the acquisition of data on the movement of the hand and forearm, it's composed of an inertial sensor fixed in hand, infrared sensors on flexible structures in the fingers, and a mechanical structure with a resistive sensor that interconnects the joint of the hand with the forearm. Finally, the teleoperation system developed with low consumption hardware, which processes the data from the sensors and transmits them through wireless communication (Radio Frequency).

Iot Beer

This work presents the development of a device to improve monitoring in the fermentation process of alcoholic beverages, to automate this density monitoring and reduce the risks of contamination and waste of the product to be fermented. In the project was taken into consideration the development of a hardware, able to make the acquisition of density from the accelerometer sensor and temperature sensor. And that you can send this acquisition information to the customer through wireless communication using low-power Bluetooth (BLE). And a device that meets the requirements of food safety, which can be inserted into the fermenter, without running risks of contamination of the alcoholic beverage during the fermentation process.

3Bot Board

3Bot Board is a hardware that was developed to be used in didactic applications in robotics, such as in robotics competitions and even as a didactic platform to acquire knowledge in electronics and embedded systems. This hardware contains several external I/Os, so that it is possible to connect both digital and analog sensors or trigger something like relays, LEDs, Servo Motors, etc. Bluetooth or WIFI modules can also be connected, as a serial bus is available for this. Two H bridges are already present on the board, which can be used to drive and control DC motors that can consume up to 2A of current. The power supply features an on and off switch, battery polarity inversion protection and a switched regulator to regulate input voltages from up to 23V to 3v3, the ideal voltage for powering the microcontroller and all digital electronics. In addition, it contains components such as LEDs, switches and buzzer already present in the hardware.

Inertial Tracker

This device has the purpose of inertial tracking of movements of the human body members from variables such as accelerometer, gyroscope and magnetometer. In order to track the movements of the human body applied in virtual reality environments. And this interface is possible to be done through USB or WIFI communication protocols between this hardware and the computer (PC).

EMG Shield

This module is an electromyographic (EMG) signal conditioner, containing filters and signal amplifiers. Which serves as a shield, which can be attached to embedded platforms such as Arduino, and thus acquire and process electrical signals from muscle activity.

ZigBee wireless module

This module has the purpose of wireless communication using the ZigBee protocol, in which it has the shape of a shield to be attached to some type of sensor, and contains USB 2.0, making it possible to receive and transmit data through the PC. an RF Front End, for signal power amplification in radio transmission and reception.

PCI Express Wireless Modules

PCI Express wireless communication modules, using ZigBee, WIFI and LTE communication protocols.

Display for Stream Interface

This LCD display module use USB for its communication. It allows to create a virtual serial port in the host system (Windows, Linux, etc), which through some software is possible to display some information on the screen. These USB monitors can be used in rack servers for easy integration. This module contains an inertial sensor, to modify the orientation of the screen data, according to the orientation of the device rack (server).

SMD Reflow Soldering

This project was a modification of a domestic electric oven to a reflow soldering oven. Allowing it to be possible to solder electronic components, preferably SMD components (Surface Mount Technology) on printed circuit boards. So for that, a hardware was developed to read the internal temperature of the oven and control this temperature. And a firmware with PID controller was implemented based on the furnace system model, according to its heating and cooling response times. Thus enabling an efficient control, which is capable of establishing the characteristics of the welding profiles for each type of solder paste used in the process.

Adapter board for 5G modules

Adapter board with standard m.2 connector for 5G modem. Containing USB 2.0 HUB for connecting devices such as PC, Raspberry Pi with two 5G modems. This board has 2x SIM card slot, for each modem. In addition to high-efficiency power supply circuits, up to 3A of output current.

Sumo robot V1.0

Project of an autonomous robot with its structure completely printed in 3D printing. Which can be used in a didactic way in teaching robotics and in sumo robot fighting competitions.

Z axis CNC

This work consists of converting a commercial product to Open-Source. It was made in a CNC model LPKF ProtoMat 91s for manufacture of printed circuit board. That all its electronic part has been replaced by hardware compatible with Open-Source CNC control software called GRBL. This electronics performs the function of actuating the stepper motors, responsible for the movement on the X, Y and Z axes, and the spindle drive intended for the rotational movement of the machining tool, and sensors for end-of-stroke detection of the machine's work area. To the original project was added a mechanics of movement in the z-axis, which allowed a greater locomotion distance on this axis, thus allowing a greater mobility of milling depth and drilling, besides having a control of movement of this axis.

Signal conditioner device

Signal conditioning and processing device. It has filters for analog signals such as a low pass and high pass filter, and a gain circuit for signal amplification. It also features a STM32 hardware for acquisition of conditioned signals.

Robotic arm control

Robotic arm controlled by a data glove that is responsible for the teleoperation of the movements of its degrees of freedom.

Adapter board for 5G modules V1.2

Data Logger Pet

RF Energy Havester