Iteaduino Lite

Overview

Iteaduino Lite is a new Arduino mainboard based on LGT8F88A compatible with Arduino interfaces. With 14 digital input and output pins (of which 6 pins can be used for PWM output), 6 analog inputs and SWD debug interface, the operating frequency can reach up to 32MHz. Compared to other Arduino mainboards, it runs faster with more powerful functions. It is compatible with most of Arduino libraries, and the development is as simple as Arduino.

Features

Adopting LGT8F88A chip
GPIO interface breaks out electronic brick interface
Adopting high-efficiency DCDC supply with wider input range
Selectable operating level: 3.3V/5V

Spec

Processor	LGT8F88A
PCB size	68.6mm X58.5mm X 1.6mm
Supply voltage	7~24V DC
Operating voltage	3.3V/5V DC
Indicator	PWR, D13
Communication interface	UART, IIC, SPI, SWD
External interface	Power socket, micro USB

Electrical characteristics

Parameter	Min.	Typical	Max.	Unit
Supply voltage	7	-	23	VDC
Operating level	-	3.3/5	-	V
IO pin drive current	-	40	80	mA

Hardware

Pinmap

Index	Name of Arduino	Alternate Function	Pin of Atmega328
1	D0	UART DIN	PD0
2	D1	UART DOUT	PD1
3	D2	External Interrupt 0	PD2
4	D3	External Interrupt 1/PWM	PD3
5	D4	-	PD4
6	D5	PWM	PD5
7	D6	PWM	PD6
8	D7	-	PD7
9	D8	-	PB0
10	D9	PWM	PB1
11	D10	SPI_NSS/PWM	PB2
12	D11	SPI_MOSI/PWM	PB3
13	D12	SPI_MISO	PB4
14	D13	SPI_SCK	PB5
15	A0		PC0
16	A1		PC1
17	A2		PC2
18	A3		PC3
19	A4	IIC_SDA	PC4
20	A5	IIC_SCL	PC5
21	SWD	SWD	PE2
22	SWC	SWC	PE0

Switch

1. Level switch

When it is switched to 5V, Lite works at 5V; when it is switched to 3.3V, Lite works at 3.3V.

Button

Resetting button

Press RESET button to reset Lite.

Installation

1. Serial port driver Iteaduino Lite adopts CP2102 chip instead of ATmega8U2 chip on Arduino UNO, thus we cannot use drive file in drive directory of Arduino IDE to install the driver. http://www.silabs.com/products/interface/usbtouart/Pages/usb-to-uart-bridge.aspx You can download CP2102 driver for different platforms including MAC version, Linux version and Windows version. Once downloaded, plug in Iteaduino Lite, search for CP2102 among the unknown devices, then click Upgrade Driver and manually install. Point the driver position to the downloaded driver directory and then install, finally the corresponding serial number can be found on IDE. More details of installation instructions, you can refer to this file: ftp://imall.iteadstudio.com/Mainboard/IM130615004_ITeaduino_Nano/DOC_Driver_Installation.pdf 2. Modify Arduino IDE Download the patch here: ftp://imall.iteadstudio.com/Mainboard/IM131209001_Iteaduino_Lite/Iteaduino_Lite.zip After extracting it, place folder Iteaduino Lite under directory arduino-1.0.x \ hardware catalog. At present, it does not support Arduino IDE version 1.5.x. 3. Download program: Select "Iteaduino Lite" when programming.