In a microcontroller programming we need a very important tool as a connecting bridge between the computer and the microcontroller, the tool uses a usb port so called usbasp.The market has sold a lot of kits that are very compact so the features are very limited and also require a cable to the minimum system which is certainly very inefficient. Here I have a project to make the tool but it can be more compact and easy to use Because it no longer requires cables and minimum system. I designed the layout of this circuit with two layers, therefore I hope to get pcb with two layersAnd it can be beneficial in the activity to program a microcontroller.

by:T.TECHhello our friends meet again, on this occasion I will introduce a simple tool that is quite interesting for audio amplifier hobbyists, namely a digital VU meter that uses a 16x2 LCD display, a little story, initially I assembled a loudspeaker (power amplifier) ​​and there I need an indicator to make it easier for me to monitor a sound signal that enters a power amplifier that I assembled earlier, generally using a led and that is common to me, then I thought how to make it look a little more interesting compared to using a led? after that I came up with an idea how to make a VU meter using a 16x2 lcd? I think it's more interesting. Hehe then I looked for references on google about VU meter using a 16x2 lcd screen, okay after searching on google I found an interesting site about what I needed, after that I studied it then I understood a little and I started composing the tools, for testing I use a hole board for component placement, what components are needed? The following is a list of the components I use: perforated board, 16x2 lcd, atmega328 ic, resistor,ic 78L05,capacitor, diode. Note: for software I use arduinoIDE because basically I use arduino / atmega328p, okay at the last stage I tried to turn on the tool I assembled earlier and the results are very satisfying, I am very happy because what I hope can be achieved, hopefully this is useful for friends, thank you ...the image below is an example of my circuit ..

12-24 VDC 10A Battery charger with PSU & Solar PanelI'm an Electronics Designer from PT. Daun Biru Engineering. This project is prototype of our module called "PM Kapal v4". The previous version can only charge a 12V battery although it's voltage max. at 24V. Beside that it can only charge with 1 source, regular power supply. It just can handle max. 1A current to charge the battery.In this newer V4 we decide to replace all the relay with MOSFET, so It gain flexibility to charge a 12V or 24V battery at max. 10A current. This module also has dual power source: PSU and Solar Panel. We also add button and LCD, so we can monitor the power and calibrate the module. This automatically detect if the power source is plugged in or not, then immediately show the value of the voltage source.Core: STM32F103C8Battery: 12V-24VPSU: 15V-30VDCSolar Panel: min. 20WPLoad: based on batteryInterface: LCD and buttonMain feature: Voltage and current monitoringIf this prototype is successful. We will make the official embedded IoT module version of "PM Kapal v4" with additional interfaces: Modbus and Ethernet.

PREVIEW The tool to be designed is in the form of attendance system multi-node with a centralized database, that is, there are many devices as data retrieval points but with centralized storage and management and monitoring from one device only. The system to be designed consists of 3 components, namely Local MQTT Server, Monitor and Database Client, and Node Client on a local network or communication without going through an ISP or external network. Local MQTT Server to function as a server MQTT used between the Client for MQTT communication or place where the function "publish" and "subscribe" to be processed and regulated by the Server MQTT. Monitor and Database Client functions to monitor each Node Client connected to the same MQTT server and record and manage data checking for each node and employee on the database. On client side this will also run GUI application that has been designed with PyQt5 to establish functions monitor and as a bridge with database. Client node has the main function as an attendance point. Client nodes cannot operate if Client Monitor and Database are not running even though Client Nodes are connected to the server. Optional function is as a door locking system as well as reading the condition of the door open or closed. These two functions will also be monitored by the Client Monitor and Database. To support these two functions the user can choose whether to use the mode to open the door (by default) or use attendance mode. In open door mode, will not be carried out data updates to the database, but only the authentication process will occur. As for the attendance system, the data will be updated to the database and recorded based on a 2-time pattern, namely coming and going home per day for each user. The controller part Node Client will be installed indoors, while the interface and scanner part will be outside. This is to support the function of the Node Client as a security system for a room. But most importantly the client node must be able to reach the access point nearest. To make it easier to understand and realize the system, several block diagrams will be made including the hardware block diagram (Figure 1) and the communication system tool (Figure 2).Figure 1. Hardware Block DiagramFigure 2. Communication System Block DiagramAttendance Node MachineHardware: ESP8266 Wemos D1 Mini - Software: Arduino C/C++Feature and library used: Dual Mode: Tap to Unlock Door and Attendance Mode Scheduler.h (Multitask) from Here PubSubClient.h (MQTT protocol client) LiquidCrystal_I2C.h (LCD16x2 I2C) MFRC522.h (RFID SPI module 13.56MHz) ArduinoOTA.h (wireless/no-usb programming) Reed/magnetic sensor for Door state solenoid door lock port max. 12V/1A (12W) 5V/3A (15W) power supply inputRecommended ESP8266 Wemos D1 Mini Arduino Configuration:Mechanic Documentation Photo:Acrylic Case for LCD, RFID sensor, button, and buzzer. Install it outside the room. Acrylic case for controller part, reed/magnet sensor and solenoid port. Install it inside the room. Solenoid port and small hole for reed/magnet sensor wire GUI (Node Monitor & Employee Manager)Tested on Windows 10 PC and Ubuntu Mate 18.04 64bit on Raspberry Pi 3 (Should be supported with Ubuntu 64bit on PC)Main file: "SCAN_node_monitor.py" ("karyawan.py", "icons", and "images" need to be in the same folder)Feature: Manage & monitor all Node Machine that connected to the same MQTT server. Using MongoDB database for Node & Employee Manager. Unlock door on every Node Machine remotely.Python 3.7 module/library used: Pyqt5 (for GUI) PyMongo (for MongoDB Database driver) Paho-Mqtt (MQTT client) Threading (Multitasking using Multithreading, 1 thread per 1 Attendance Node Machine)

by:T.TECHhello friend, my name is Tata Prasetyo from Indonesia, I am back again with a new project that may be my project can help you to simplify your learning in the microcontroller field, and this is from my personal experience that may have happened to you too, a little story from me: first I learned a microcontroller using an Arduino Uno board with a DIP type ic, after a long time later I had learned how it works then I thought about making my own version of the board for anyone to develop, this time I will use the SMD type ATmega328 ic , but after I thought it would be troublesome for the user, how do I enter the program on the IC using the program file download tool? well, therefore I made a board for the ATmega328 / 8 IC type SMD to DIP, with this board I hope and other users it will be easier to enter the program into the SMD ic using the downloader tool, or you can also add the usual jumper cables Generally used for studying, because the board already uses a male pin header, ... okay that's all from me, hope it will be useful for friends, thank you :)

Hello friend, i am from indonesia, ok after a long time i did not share the project, this time i am back again with my new project, introduce my new project which is about a board to learn microcontroller programming which i named IJO-BOT , now the component on a board that I made is mainly a microcontroller ic from the ATMEL manufacturer, namely ATMEGA128, why do I use the Atmega128 chip? because I give a little space to users to be broader to develop their project in terms of more GPIO pins, this is my own experience, I used to learn to use the clone version of the Arduino Uno board just to learn, after a long time later I began to understand how the board works Then I developed a number of small projects to become big, now I started to feel that there was something missing from the Arduino board that used the Atmega328 chip, the drawback was in the GPIO pin section, at that time I was working on projects that required a lot of GPIO pins, so that's why I think how to deal with this problem? I searched for info on google and finally I found a solution, actually there are many solutions to add pins to the Arduino board by adding an external support ic, but I decided to make my own board that has more GPIO pins than the Arduino board, and in my opinion it will be easier I and other users in developing the project, ohh yes, the board that I made also supports programming using the ArduinoIDE application by adding a MEGAcore board which can be downloaded on Google, the following is my sponsor, I hope it will be useful for friends, .. thank you

old device: SENTINEL mark I: PSIONICPreview Line Follower robot competitions are very often held between students and hobbies. Apart from being the basic material for learning in electronics and microcontroller programming, this type of robot is in great demand because of its cool shape like F1 or also a tamiya toy. This robot can be adjusted through the keypad interface and 128x64 LCD ranging from calibration, algorithms, and other functions. Arduino compatible based on Maple Mini board (STM32F103CBT6)Burn and update firmware via USB-OTGBTS7960 motor driver 2 port + encoderOLED I2C SSD1306 128x64external EEPROM (24LC256)2 port for mini servo 5V1 port for extinguisher motor (adjustable voltage using PWM)external serial port (Serial1) SENTINEL mark II: QUEST. This robot is a development of the previous version, the SENTINEL mark I: PSIONIC (on cover photo). Here I will include a video documentation of the previous version, namely SENTINEL mark I:Following are the full specifications of the latest version of the SENTINEL mark II: QUEST:For full Schematic and Gerber you can grab them here.The part list and OS (Arduino source code) will be uploaded soon on my githubCore + Motor DriverPower SupplyInput : LiPo 3 cell 12.6V12V : Main motor (left and right) and extinguisher5V : Servo motor3.3V : STM32, EEPROM, LCD, sensorCoreMain controller : STM32F103CBT6USB-OTG : burn bootloader, robot OS upgrade (firmware)External Serial1 port : burn bootloader, Bluetooth, WiFi, etc.Servo port : gripper (for transporter mode)BOOT jumper :BOOT Configuration Mode to System Memory (burn bootloader) or Flash Memory (bootloader / OS upgrade)Battery voltage sensorMotor driverMain motor : 12V DC motor right and left (+ additional encoder pin) Extinguisher : for "Fire Fighter" mode, the voltage can be adjusted by PWM (configuration menu)LCD + EEPROM + ButtonLCD : I2C OLED 128x64EEPROM : 24LC256SMD push buttonSensor14 multiplexed sensors (7 left and 7 right)Adjustable LED brightness (configuration menu)FULL

Hi friend, we are from Cikarang Teknologi from Indonesia, we have made pcb layout to control home electronics using internet. we use the wemos d1 mini as the main control.below is the pcb layout.for smd component we use smd 1206 resistor and diode.friends can also use the plc box enclosure.for programming you can see on the internet, for example:I / O information:D1 <==> RL1D2 <==> RL2D3 <==> RL3D4 <==> RL4D5 <==> RL5D6 <==> RL6D7 <==> RL7D8 <==> RL8

Hello there my name is Dhiya, currently I am study in Electrical Engineering at Muhammadiyah University of Yogyakarta. Now, I have research with topic implementation IOT on the mushroom farm in the traditional system the mushroom farmer grow mushroom by placing mushroom seeds in rooms that have a certain level of humidity and temperature, according the type of mushrooms manually. Nowdays, we can make system automatically using IOT ( Internet of Things). The system consists of 2 board that is System Minimum Board and Relay Actuator Board. For more details we will explain on the below.A. System MinimumSystem minimum is the main control board for our system, The System minimum supply from dc 12V This board consist of1. Microcontroller2. Sensor BME280 (Temperature, Humidity, Pressure Sensor)3. Step Down Converter4. LCD Display 20x45. GPRS ModuleThe microcontroller work as main control of the all system, that can control the sensors and the actuator, manage a data and etc. The GPRS Module work to send data from microcontroller to the server, so we can monitor the mushroom farm from far away. The LCD Display work to display the condition of sensor and actuator. The picture of our system minimum board show in the belowB. Relay BoardThe Relay board is Driver that can control the actuator e.g (Fan, Water Jet Pump, and etc). The Relay Board consists of 6 relay channels, so we can control 6 channels actuator at the same time under different conditions. The Relay Board, the Relay Board consists 2 main component, that’s optocoupler that using for separate between dc voltage and ac voltage, furthermore it using for driver of Relay. The picture of our relay board show in the belowFor the completion of our project we often require the fabrication of PCB , microcontrollers and other electronic board and we think PCBWay can be of a great help by aiding us in fullfilling our fabrication needs.

Hello there, We are Tobotic (Teladan Robotic) part of start-up Micro-Machina Indonesia. We are from Yogyakarta, Indonesia. We are robotic division in this start-up, and our mission is to make robotic class for young generation and for elementary school, junior high school, and senior high school. We are prepare the curriculum and the lesson so confortable and very well to make sure our children understand with it and to make sure our children can be achive good ability in 4.0 era. One of our project for education is build a light follower analog system. The robot can follow the movement of the flashlight. it build using analog system without the microcontroller. this project build as simple as possible, that can easy learning for elementary school. The robot consists of 3v battery, dc motor, comparator circuit, and a photodiode sensor. For more detail you can see on the figure below. The robot electrical part detail you can see on the below : 1) DC Motor x2 2) LM358 x1 3) DC Battery 3-6V 4) Resistor 330 x6, Resistor 1K x 2 5) Variable Resistorr 10K x2 6) LED 5mm x2 7) LDR Sensor x2 The dimension of our robot is 30mm x50 mm This is 3d PCB design of our project you can see on the below. And the Mechanical Part of the robot we build using 3d printing machine, the 3d full design of our robot you can see on the below. This project is very easy cool and easy to understand particularly for children that have interested on the robotic since in elementary school. We would request PCBWay to sponsor us. Your sponsorship will help assure our team. It is deeply appreciated!

Hi my friend, I'm Fareed from Indonesia. i has designed a Layout pcb that is useful for displaying the engine speed of a vehicle, then displayed by 20 LEDs representing 500 engine speeds for each of its LEDs.This circuit is very suitable for cars and motorcycles with a very attractive and responsive appearance, below I show the circuit

by: T.TECHhi friend my name is Tata Prasetyo, in my field of work other than making simple electronic equipment is an electronics repairman, I focus on repairing car audio and video electronics, in addition to repairing damage I also receive installation of car audio and video,. indeed like in the fieldsound and music so I have the intention to pursue this field, below are some pictures about my field ...car power amplifier repairedouble din/car dvd repaire

by: T.TECHhello friend, my name is tata prasetyo from indonesia, here i want to introduce a simple project from my own, the project this time is about the sign system on a car vehicle, the way the tool works is when the gear is directed at the R / reverse position, okay .. when the car backs up, the bell will sound this tool that sounds so that it gives a signal to other vehicles behind it through the sound tone.here I am stringing with a system minimum,. the materials I use are as follows: perforated circuit board with a size of 50mm x 65mm, atmega328 controller ic, 7805 voltage regulator ic, diode, elcho,resistor,crystal 16mhz and dfplayer module as a sound reservoir.Arduino IDE as my programming ic,.system minimum:video example:

DIGITAL AUDIO TONE CONTROL:hello friend, this time I made a project related to audio tone control, the way this tool works is to set the sound of music that is equipped with a vu meter, monitor the temperature in the power amplifier and other features for adjusting bass, treble, volume and complete with a voltage protector if there is a problem in the power amplifier circuit.the components that I use consist of atmega328 ic as a controller, PT2313 as an audio processor and 16x2 lcd as its appearance.the video below is an example of how this tool worksDESIGN PCB:front viewrear view

Hello my name is Fareed, I have a project that can be applied for daily use called Programmable Timer Relay.This circuit can be used from 3 Channels to 7 channels which can be programmed each time.This circuit is equipped with RTC DS3231 so that the time schedule will not be interrupted.By using this series we will be free from the use of home light switches

ANDROID REMOTE CONTROLLintroduce my name, Tata Prasetyo from Indonesia,. I am an electronics hobbyist and pcb design, this is my first project and was successful for me to test, in this board I use some electronic components, i.e. atmega328 as the microcontroller, uln2003 ic as relay drive .. for the connection to my mobile phone using the HC-05 bluetooth module and an android application from remoteXY, to make the application you can visit https://remotexy.com/ that is all from me and hopefully useful Thank youthis is a video of a trial with a bread boardthis is a video that I installed on a motorcycle