Thank you! Thank you for everyone support this campaign!
Now go back to work, there still left a lot to do before it release. 🙂
This is my first time to record a video for VoCore, some parts are not very clear, next time will be better 🙂
+5V input, current is about 0.2A when wifi is on. I did not use any power save kernel module or app, amazing! I thought it should be at least 0.25A. :p Its power consume is even less than MT7620A. Wifi output is 100mW.
Now VoCore is on indiegogo 🙂 The people who want to buy it have a better way. Please support this campaign, or it will become my personal toy. 😀
Link is here: VoCore Indiegogo.com Campaign Link
It works. Someone said it is hard and have to change RT5350 wifi driver code, but I did not change any code, maybe the developers of openwrt already fix that? 🙂
SSID for AP mode is VoCore
SSID for STA mode(my house router) is VongerWifi
That is not hard to setup:
First, enable STA mode, add two lines to the end of /etc/config/network.
config interface wwan option proto 'dhcp'
Then change /etc/config/wireless
config wifi-device radio0 option type mac80211 option channel 11 option hwmode 11ng option path '10180000.wmac' list ht_capab GF list ht_capab SHORT-GI-20 list ht_capab SHORT-GI-40 list ht_capab RX-STBC1 option htmode HT20 config wifi-iface option device radio0 option network lan option mode ap option ssid VoCore option encryption none config wifi-iface option device radio0 option network wwan option mode sta option ssid VongerWifi option encryption psk2 option key PasswordForWifi
If your house router has taken 192.168.1.1 as its IP address, you have to change the setting in /etc/config/network, set openwrt ip to other, so it will not conflict with your house router in STA mode. The ip in example is 192.168.61.1.
config interface 'lan' option ifname 'eth0.1' option type 'bridge' option proto 'static' option ipaddr '192.168.61.1' option netmask '255.255.255.0' option ip6assign '60'
After that, looks everything works fine. My computer is able to connect to VoCore and VoCore is able to connect to internet through my wifi. But the only problem is my computer can not connect to internet through VoCore, maybe I have to setup a route on the board, will study on that later.
I opened a facebook page today, have fun!
Do not hesitate to press LIKE!
PS: It is so hard to login to facebook from China, XD.
About 10 meters from my home router(half is walled)
X-Y, Y-Z, X-Z direction for 10 times test, average value:
YAGEO:CAN4311153002451K(4dbi), 5.3 x 2.0 -> -70dBm
Supermax: IAN0201(2dbi), 5.2 x 2.0 -> -72dBm
Sunlord: SLDA72-2R470G-S1(2.5dbi) 5.0 x 2.0 -> -68dBm
Rainsun: AN3216-245 3.2×1.6(0.5dbi) -> -72dBm
????: PCB IPX antenna -> -80dBm
So, after that test, remove the IPX for more clearance zone is a better choice.
IT IS SO HARD!!!
I have made 8 VoCore v0.5 but only 2 works, Rest are all NG at BGA part…
The problem is my paste is Sn-Bi-Ag(176℃), but BGA balls are Sn-Ag-Cu(226℃), I make the hot air to 320℃ the balls are melted down but can not touch and connect to PCB pads.
After serval test, I find a way. Paste under BGA is necessary, put paste on PCB BGA part first, then put RT5350 on that, MUST perfectly on its top. Then use hot air 220℃ until paste is melted about 30 seconds. Rise to 280℃ about 30 seconds, balls and paste will combine to one. After cool down, everything is just fine.