Parallel Camera Module for IOT Applications

AL462B-Parallel-DMB-A0

OV5640 with AL462 Video FIFO

Parallel Camera Module for IOT Applications

1. Introduction

This parallel camera module is used to temporarily store image data in the AL462 FIFO memory. You can use a compact microcontroller to transmit the image data to cloud or use the image data for image recognition applications.

Most IOT applications are transmitting low data rate from sensors, but the video buffering is difficult to be handled by the compact microcontroller. The easiest way is using AL462 parallel camera module to handle the video functions.

We also provide an Arduino DUE sample code for capturing one picture from OV5640 and storing the data in the AL462 video FIFO.

1.1 Key Features

·         8-bit Parallel / I2C / GPIO

·         JPEG 1920x1080, 1280x720, 1280x960, 640x480, 320x240 one frame capture

·         Automatic image control functions: AEC, AWB, ABF and ABLC

·         Programmable controls for frame rate, AEC/AGC 16-zone size/position/weight control, mirror and flip, cropping, windowing, and panning

1.2 Application

·         IOT video sensor

·         Video analysis

·         Toy/robot Applications

1.3 Documentation

AverLogic provides below documents and tools that can be requested if you plan to development your product on this module. The documents and tools may not be available for all cases.

Please contact AverLogic representative to get the documents and tools.

AverLogic Tools & Documents	Description
AL462B datasheet	AL462B chip datasheet
Module application notes	Parallel Camera module application notes
H/W reference design package	Schematic and all layout files
Reference source code	Arduino DUO sample code

2. Hardware Design Notes

2.1 Key Parts and Functions

2.2 HW Schematic

Block Diagram

3. System Installation for Arduino DUE

3.1 Setup the System- Send JPEG through UART

This section shows you how to setup the DEMO case for picture capturing and send it through UART interface.

Connection

Arduino Due		AL462 CONN3 20x2
PIN NO.	Name	PIN NO.	Name
	+5V	37/39	P4V2
	+5V	38/40	P4V2
	GND	33/35	GND
	GND	34/36	GND
	GND	19/21	GND
	GND	20/22	GND
22	PIN22	15	AL462_DO_0
23	PIN23	16	AL462_DO_1
24	PIN24	13	AL462_DO_2
25	PIN25	14	AL462_DO_3
26	PIN26	11	AL462_DO_4
27	PIN27	12	AL462_DO_5
28	PIN28	9	AL462_DO_6
29	PIN29	10	AL462_DO_7
30	PIN30	18	AL462_WRST1
31	PIN31	17	AL462_IE1
31	PIN32	8	AL462_RRST1
33	PIN33	6	AL462_OE1
34	PIN34	7	AL462_REN1
35	PIN35	5	AL462_RCLK1
36	PIN36	30	AL462_OSC_EN
37	PIN37	32	5640_OSC_EN
38	PIN38	26	AL462_RST
39	PIN39	27	OV5640_PWDN
40	PIN40	25	OV5640_RSTN
43	PIN43	28	OV5640_HSYNC
57	PIN57	23	OV5640_VSYNC
20	SDA	31	SDA
21	SCL	29	SCL

Arduino Due Pinout Diagram

Operation Step:

1. Use Arduino “Serial Monitor” to key in '1' or '2' to select the favorite resolution

2. Key in 'c' command to capture a picture

3. Copy the Data: From the head:0xFF 0xD8 to the end: 0xFF 0xD9 data to the JPEG.txt
4. Execute the TxT2BIN.exe

5. Got your picture: JPEG.jpg