arduino leonardo r3 atmega32u4

"GPS NEO-6M Satellite Positioning Module Development Board for STM32 usb 51 neo6m（with Battery

Ublox GPS NEO-8M GPS module GY- NEO8MV2 (with Battery)

"Ublox NEO-7M GPS Module with EEPROM for C/AeroQuad with Antenna （with Battery）

3v battery CR2450 Panasonic AFPX-BATT FP-X series PLC

12V 6800mah Lithium 6.8Ah Rechargeable Battery Pack with BMS + 12.6V Charger  

3.3uH 2A Inductor 10% Tolerance 8x10mm Drum Core

10uH Inductor 0810 i section shape Radial Leaded inductor

4 channel speed sensor module motor speed counting module groove coupler module

STM32F103C8T6 Minimum System Development Board STM32 ARM Core Module

esp8266 ESP-01 Adapter Module 3.3-5 V (Arduino compatible)

AS608 Fingerprint Reader Sensor Module Optical Fingerprint Fingerprint Module