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# VoCore
## Overview
VoCore is a coin-sized Linux computer running OpenWrt. It contains 32MB SDRAM, 8MB SPI Flash and using RT5350(360MHz MIPS) as its heart. It provides many interfaces such as 10/100M Ethernet, USB, UART, I2C, I2S, PCM, JTAG and over 20 GPIOs but its size is less than one square inch.
## Hardware
### Specs
* SoC:
- Ralink/Mediatek RT5350 MIPS processor @360MHz
- Dual band 802.11n Wi-Fi (up to 150Mbps)
* RAM: 32 MB RAM * Storage: 8 MB SPI Flash * I/O (20 GPIOs)
- Dual 10/100M Ethernet
- USB Host
- UART
- I2C
- SPI
- I2S
- PCM
- JTAG
* Power: 5V, 3.3V, 1.8V, GND * Consumption: <250mA @ 5V * Dimensions: 25×25 mm
### Pinout
The pin spacing is 1.27mm, 0.50mil
### Dock for Vocore Alpha
My Vocore alpha had wires coming out of them, in a big… mess. So I made a small dock for them, with onboard USB-Serial adapter (for debug purpose), and access to the USB port. Access to the I2C port can also be enabled. OSHPark PCB service is exactly what I needed, only three boards at a very cheap cost. The design is available here: VoCoreAlpha dock
## Software
### OpenWRT
From: http://vonger.cn/?p=412 See also: http://wiki.openwrt.org/toh/vocore/vocore
### Serial
Wire the Serial port 2 (RX2, TX2, GND) and then you should be able to connect to the board using an USB-TLL adapter:
picocom -b 57600 /dev/ttyUSB0
I ran into some issues (board freezing then rebooting, apparently because of some RAM issues) when powering the VoCore through an USB port of my laptop. It only happened when the USB adapter was plugged in. I have since tried with an external USB power supply (phone charger), it fixed this issue.
Infos from: http://vonger.cn/?p=780
### AP+STA Wifi Add the following to /etc/config/wireless
config wifi-iface
option device 'radio0'
option mode 'sta'
option ssid '_YOUR_SSID_'
option encryption 'psk-mixed'
option key '_YOUR_WPA_KEY_'
option network 'wan wwan'
Add the following to /etc/config/network
config interface 'wwan'
option proto 'dhcp'
From: http://vonger.cn/?p=332 See also: http://vonger.cn/?p=363
# Links
* http://vonger.cn/ * http://vonger.cn/?p=387 Q&A * https://www.indiegogo.com/projects/vocore-a-coin-sized-linux-computer-with-wifi * https://wikidevi.com/wiki/VoCore * http://vonger.cn/?forum=vocore-alpha-test * http://vonger.cn/?forum=vocore