Posts tagged Arduino Board
BLE Nano Arduino Board - Bluetooth Control with an iPhone (BLExAR App)
BLE Nano Arduino Board - Bluetooth Control with an iPhone (BLExAR App)

The BLE Nano is introduced as a hybrid between an Arduino Nano and a CC2540 Bluetooth Low Energy (BLE) module. The Arduino Nano has an ATmega328P as its main microprocessor, which communicates over the serial port to send and receive Bluetooth packets from the CC2540 BLE chip. This creates a Bluetooth-enabled Arduino device - encased in a Nano-sized circuit board! Using the BLExAR iOS app, the BLE-Nano will be controlled using an iPhone. BLExAR allows users to control the pins on the Nano, which will be demonstrated by switching an RGB LED on and off.

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Arduino, Bluetooth, ElectronicsJoshua HriskoBLExAR, Arduino BLExAR, Arduino, Arduino iOS, Arduino iOS Bluetooth, Arduino Bluetooth, Arduino IoT, Arduino App, App, BLE Nano, BLE, Bluetooth, Bluetooth Low Energy, iOS Bluetooth, HM-10 Bluetooth, HM-10 Bluetooth Module, AT-09 Bluetooth, iPhone X Bluetooth, Nano, Arduino Nano, Arduino Board, Arduino Boards Manager, Arduino Upload, RGB, RGB LED, Arduino RGB LED, Arduino RGB, Breadboard, Wiring, Arduino Wiring, Code, Programming, Arduino Programming, microcontroller, Pinout Comments
Arduino Optical Fingerprint Sensor (AS608)
Arduino Optical Fingerprint Sensor (AS608)

Optical fingerprint sensors take low-resolution snapshots of the tip of a finger and create arrays of identifiers that are then used to uniquely identify a given fingerprint. The AS608 is capable of storing up to 128 individual fingerprints. This tutorial will introduce the AS608 Arduino-compatible fingerprint sensor and how to validate and reject fingerprints based on the enrolled fingerprint information that will be given to the sensor. The fingerprint algorithm is handled by the AS608 and Arduino, so this tutorial will focus on implementation and putting the pieces together to make a working fingerprint sensor with Arduino.

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Arduino, ElectronicsJoshua HriskoFingerprint, Fingerprint Module, Fingerprint Arduino, Arduino, Arduino Sensor, Arduino Fingerprint, Arduino Module, Arduino LED, Arduino Resistor, AS608, Fingerprint Identification, Arduino Finger, Arduino Fingerprint Identification, Adafruit, Adafruit Fingerprint, Arduino Board, Arduino Uno, Breadboard, LED, LEDs, Sensor, Library, Enroll, Fingerprint IDComment
Arduino Uno R3 vs CH340
Arduino Uno R3 vs CH340

The CH340 Arduino board contains an ATmega328P-U-TH chip, which differs from the classic ATmega328P-PU in official Arduino Uno Rev3 boards. The CH340 is an inexpensive USB-to-Serial chip (datasheet here) that takes the place of the Rev3 board’s more expensive ATmega16U2. This creates issues when programming the Arduino board with certain operating systems (specifically Windows), however, for most Linux and Mac systems - there appears to be no issue. In this tutorial, I will explore the CH340 Arduino board to see whether there are differences in performance and power under different operating conditions. This will definitively answer whether the CH340 is a worthy alternative to the Rev3 or if it’s just a cheap imposter.

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Arduino, Electronics, ProgrammingJoshua HriskoArduino, Arduino CH340, Arduino Uno, Arduino Uno CH340, Rev3 vs CH340, R3 vs CH340, CH340 Arduino, Arduino Board, Arduino Comparison, Multimeter, Arduino Operating System, Arduino Upload, Upload Time, Upload, Arduino Sketch, Arduino Power Consumption, Power Consumption, Arduino Time, Arduino Power, Arduino Linux, Arduino Raspberry Pi, Raspberry Pi ArduinoComment