Specification: Item Type: Electronics Starter Kit Material: PCB Purpose: Use conductive sewing thread to connect each PCB board with corresponding function to realize various novel and interesting ideas Processor: For ATmega168 or for ATmega328 Working Voltage: 2.7V-5.5V Input Voltage: 2.7V-5.5V Digital IO Feet: 14 (6 of which are used as PWM outputs) Analog Input Pin: 6 IO Pin DC Current: 40 mA 3.3V Pin DC Current: 50 mA Flash Memory: 16 KB (for ATmega168, of which 2 KB is used for bootloader) SRAM: 1 KB EEPROM: 0.5 KB Working Clock: 8 MHz LED Includes Colors: White, red, , yellow, blue, green, yellow-green, orange, warm white Package List: 9 x LED module 1 x Pixel Board WS2812 Disc 1 x Temperature Sensor 1 x ATmega328P 16M 328 Motherboard 1 x USB to TTL 3.3V/5V downloader FT232RL Module 1 x Battery Holder Module 1 x Matching/Conductive Sewing Thread/Wearable 1 x Buzzer Module 1 x Wearable Electronics 1 x ADXL335 3-Axes Acceleration Sensor 1 x Toggle Switch 1 x TEMT6000 Light Sensor Module 1 x Multi-Color LED RGB Module 1 x Button Note: Without a circuit, the input voltage cannot be reversed or exceed the threshold.