2ABU6-G1

Project: 2ABU6-G1
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State	Active
Members	Da Syntax, Xopr, Prodigity
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Description	Minew BLE/Wifi Gateway
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A.K.A. Minew, MS93MFZ_V1.0, MS93MF6_V1.2, MT7628, Thingoo, 2ABU6-G1 Thanks to Monadnock for a lot of the pin labels

snippets

play with the LEDs

kill the pubmsg service

kill -9 `ps w|grep watchdog_loop|grep -v grep|awk '{ print $1 }'`
kill -9 `ps w|grep autopubmsg|grep -v grep|awk '{ print $1 }'`
killall -9 pubmsg

Random color animation:

while true; do head -c96 /dev/urandom > /dev/ws2812 ; usleep 50000; done

Draw a (bad) VU meter:

echo -en '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\xff\x00\x00\xff\x00\x00\xff\x00\x00\xff\x00\x00\xff\x00\x00\xff\x00\xff\xff\x00\xff\xff\x00\xff\xff\x00\xff\xff\x00\xff\xff\x00\xff\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' > /dev/ws2812

or use a custom built File:Fartnet.gz to listen as a fake artnet endpoint (source here) to get this:

connecting UART

New firmware has a script that install openssh-server, so UART is no longer required to get things up and running!

/!\ don't connect PoE and UART, you will fry the main board; there is a 43v difference in ground planes.

use 3.3V logic to be safe

For best results (prevent console glitches and boot loops), disconnect UART V_IN and connect regular (micro) USB power

Run terminal client in 56k 8N1: minicom -D/dev/ttyUSB0 -b57600 -o And make sure Hardware Flow Control is off: Ctrl+a, o, choose Serial port setup, f

install secure shell daemon

Connect to Minew AP (wifi).

Login with default credentials, if it doesn't work; hold reset pin atleast 30 seconds while booting device.

Update firmware (see below).

Configure Minew to use your network with wifi or ethernet in the Network tab.

Take note of IP address in Status tab.

Disconnect from Minew AP.

Visit http://thingoo/cgi-bin/installssh (you might need to fill in its IP address).

After it is installed you should be able to SSH to the device!

gain root access by #updating firmware and run the following:

opkg update
opkg install openssh-server
vi /etc/ssh/sshd_config

make sure PermitRootLogin yes is set for (ch)easy login

/etc/init.d/sshd restart

updating firmware

The current version at the time of writing is v3.2.2

• login to the router (http)
• go to tab Other (the last tab)
• scroll to FIRMWARE UPGRADE
  • either choose USB and put the firmware as thingoo-upgrade.bin on the root of a USB stick (case sensitive)
  • or choose put the firmware on a (local) webserver and fill in its URL (root:kakhoofd). Case sensitive: chances are, you have to rename the file thingoo-upgrade.bin!

root password

The password as of yet is unknown (you can flash other firmware with a known/empty password so no real problem).

The shadow hash is $1$Sevciuy0$CRuXyRAOWeathkwz1T00I1 (md5crypt) and is not in the 13GB Rocktastic12a password list, nor is it found by hashcat -O -a 3 -m 500 hash.txt -1 ?l?u?d ?1?1?1?1?1?1?1 --increment, which means, it either consists of punctuation marks/spaces (?s), or is 8 bytes long or longer, which the latter would take roughly a week on 8 × RTX3090s to verify.

troubleshooting

ModemManager

Some Linux distro's hijack the serial port for modem usage; when you're experiencing problems, try and disable the ModemManager service:

systemctl disable ModemManager.service
systemctl stop ModemManager.service

Hardware flow control

If your serial is working intermittently, make sure Hardware flow control is off; for minicom it's: Ctrl+a, o, choose Serial port setup, f

If your terminal glitches or if you have boot loops, make sure you have a proper power supply and don't mix several supplies (i.e. PoE, USB, UART)

pins and connectors

J1

SoM row near the UART (J8) header

1. USB D-
2. USB D+
3. GND
4. SD_D2 (MDI_TN_P4)
5. SD_D3 (MDI_TP_P4)
6. SD_CMD (MDI_RN_P4)
7. SD_CLK (MDI_RP_P4)
8. SD_CD (MDI_TN_P3)
9. SD_WP (MDI_TP_P3)
10. SD_D0 (MDI_RN_P3)
11. SD_D1 (MDI_RP_P3)
12. ETH TXON0 (MDI_TN_P0)
13. ETH TXOP0 (MDI_TP_P0)
14. ETH RXIN0 (MDI_RN_P0)
15. ETH RXIP0 (MDI_RP_P0)
16. GND
17. UART_RXD0 (GPIO#13)
18. UART_TXD0 (GPIO#12)
19. PWM_CH0 (GPIO#11, testpoint T11)

J1

SoM row near the SD card slot

1. I2C_SD (GPIO#5)
2. I2C_SCLK (GPIO#4)
3. I2S_CLK (GPIO#3)
4. I2S_WS (GPIO#2)
5. I2S_DO (GPIO#1)
6. I2S_DI (GPIO#0)
7. GND
8. UART_RXD1 (GPIO#46)
9. UART_TXD1 (GPIO#45)
10. WLED_N (GPIO#44)
11. LINK0 LED1 (GPIO43, active high)
12. LINK3
13. LINK4
14. WPS_RES_PBC
15. REF_CLKO (GPIO#38)
16. GND
17. GND
18. VDD (3.5v, testpoint T2)
19. VDD (3.5v, testpoint T2)

J8

UART, presumably 3.3v

1. Vin (tied to U10-8, EML3276 near SW2, also to testpoint DC4.5V=T20 via switch J13 in on-position)
2. RxD
3. TxD
4. GND

J12

related to nRF52

1. GND
2. V (3.3v, same potential as T23)
3. D ?
4. C ?
5. Reset?

CON1

IPEX/UFL for Bluetooth, connected to the middle antenna

CON2

Ribbon connector to WS2812 LEDs, flip up to release

notes

Power (over Ethernet) compatibility:
barrel plug: none 5V

	straight	crosslink
802.3af	yes	unknown
legacy	unknown	unknown
compatible	unknown	unknown
Unifi	no	unknown

Note: has a micro USB connector

also see

• product page
• Monadnock consultancy community blog
• FCC entry
• reference designs compared to the FCC internal pictures and Monadnock's pinout