Wireless Bar Code Scaner

par dalong243020
Portfolio

Arduino-based scan Terminal that contains LCD display and Thermal Printer for printing receipts. Built-in Bluetooth 4.0 (BLE) device is used to communicate with Android/iPhone.

image of username dalong243020 Flag of China Harbin, China

Me concernant

I'm a qualified Software(C++ /iOS/Android/Webserver) and electronics engineer having rich 13yrs+ experiences. Have worked with following peripherals & technologies: - Android & iOS App Development -Social SDKs(Facebook, Twitter, Admob, Google APIs and all other sections of Social) -MySQL, PHP, JSON, UI/UX - Wireless: Bluetooth (2.0 and BLE), WiFi (ESP8266 and ESP32), RFID, nRF24L01+, etc., - 9DOF IMU sensors (accel+gyro+mag) + data filtering (complementary, Kalman, Madgwick filters), - Ethernet & TCP/IP stack, Developed numerous C libraries for using sensors and shields with STM32 ARM and have experience of creating a device from scratch, doing both firmware and PCB development (Autodesk Eagle CAD). Additionally, I teach C & microcontrollers programming at TechMaker Patent holder, invented a device for measuring wind velocity and direction, which won a number of awards at Intel International Science and Engineering Fair 2009 Kinds regard.

$30 $ US / h

6 évaluations
5.4

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