Arduino UNO Luxmeter Project (LCD USB)
When reviving a luxmeter on a printed circuit board, there was a problem that the proposed connection is inoperative. The first option was quickly verified by measuring the printed circuit board with a multimeter. An error was found in... Electronics Projects, Arduino UNO Luxmeter Project (LCD USB) "arduino projects, " Date 2019/08/04
When reviving a luxmeter on a printed circuit board, there was a problem that the proposed connection is inoperative.
The first option was quickly verified by measuring the printed circuit board with a multimeter. An error was found in the wiring. Grounding of MCP1258 was not connected to dissolved ground. The defect was fixed, but the device was still inoperative.
The Arduino UNO programmer, in which the ATmega328 single chip is fitted, can provide not only 5V voltage, but also 3.3V power. When testing the power supply voltage change, I found that although all components are compatible with 3.3V, but the wiring is not able to work with such a small voltage. The problem could be that the selected components would need more current than 2 AA batteries to provide. By interrupting the PCB, it was experienced to power the circuit with 5V from the programmer. The interruption had to be made so that the voltage difference did not damage the components in the wiring.
With this in mind, it was found that the error had to be made in PCB design. Looking at the connection, I found that the flying capacitors of the MCP1258 I had designed badly. This error was corrected, but the luxmeter printed circuit board device remained inoperative. When checking components, it was found that the choice of MCP1258 stabilizer was unsuitable because this type cannot add enough current to the circuit. For a time reason, the new wiring design could not be implemented, so the luxmeter was left on the test panel because it was fully functional.
Luxmeter Graphics interface software
In the following, a graphical interface software has been designed so that the stored light intensity values can be transferred via the USB peripheral to the computer. A good solution is virtual serial communication (COM). In order for the virtual serial port to work properly, the AVR and PC parameters must be set appropriately.
Selected settings:
Baud rate: 19200 bit / s
parity: none
data bits: 8,
stop bits: 1,
handshake: none.
When running the application, you need to select the communication interface (COM) that controls the reader. Communication settings are pre-defined, no need to be set. If the communication interface (COM) is not accessible because it is being used by another program, it will throw an error message. Until the serial port is busy, the program cannot be used.
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-26125.zip
Related Posts
-
Arduino EMG Processing EMG Processing Arduino Focused on the design of active hand prosthesis. This work summarizes upper limb anatomy with focus on forearm.
-
Spectrum Analyzer Circuit Arduino Uno the Arduino Uno module held with MAX7219 8×8 LED matrix display module graphic equalizer spectrum analyzer and the filter driver in
-
Tiny Robot Balloon Arduino Pro Arduino Pro a balloon Robot with a microphone to detect sound on the sound by flapping wings in the middle and
-
Arduino 8 Band Neopixel Strip Led Spectrum Analyzer Circuit Microphone, Arduino, and LED strip to express the sound with light, together with hardware developer who likes to make physical computing,
-
Spectrum Analyzer Circuit Arduino RGB Led Strip the spectrum analyzer circuit a project of Arduino Duemilanove Module 7-band graphic equalizer on board sound on the ground floor MSGEQ7
-
TPS92513 TL494 Power Led Driver Circuit Design of controllable current source, which will be used to control the brightness of the power LEDs. It is intended to
-
ENC28j60 Ethernet Module For Arduino Kit Arduino Kits can be merged with the Arduino Ethernet module is based on the materials used in the design of the
-
Interesting Arduino Circuits Some projects with PIC Microcontrollers have been implemented with Arduino modules. Converting Arduino software for PIC or vice versa, though not
Circuits CNC de commande de pilote de moteur entraînements de moteurs pas à pas unipolaires, circuits de commande de moteurs pas à pas bipolaires, cartes de commande et d'alimentation qui bénéficieront aux projets CNC… Conceptions haute puissance ainsi que fonctionnalités de circuits de commande de moteur basse puissance. Schéma et schéma de circuit imprimé PCB de circuits CNC Source de dessin avec aigle cad Il y a des fichiers. Relais 8 fils avec relais 10 ampères avec pilote ULN2803 isolé avec PC817 Opto koubler pour utilisation avec port LPT ou microcontrôleur Allegro A3967 un moteur pas à pas bipolaire à faible puissance avec une puissance de circuit de 400mA… 700mA tension de fonctionnement 4,5v à 20V Le circuit de commande de moteur Allegro A3986 est un pilote de moteur à double pont complet avec convertisseur micro-pas intégré adapté pour la commande de moteurs pas-à-pas bipolaires industriels à haute puissance (généralement de 30 à 500 W). La commande du moteur est également assurée par des MOSFET de puissance à canal N externes pour des tensions d'alimentation de 12 à 50 V.