Wiki for Dreamcatcher 3.03
(This Wiki was started by @ac8dg and simplifies searching the Forums)
Please Edit and add a note to the revision history at the bottom
Currently in production
To purchase see https://store.othernet.is/products/dreamcatcher-3-0
How to use as an Othernet (Formerly Outernet) - Skylark Receiver:
First time User’s Guide to Setting Up and Using Othernet Dreamcatcher v 3.03 With Skylark 5.5 is at https://cdn.shopify.com/s/files/1/0770/0935/files/Dreamcatcher_V_3.03_SL_5.5_User_Manual_1.pdf?6506786568900441680
Link to Skylark software https://archive.othernet.is/Dreamcatcher3%20Skylark/
Live On-line Dreamcatcher board running Skylark 5.5 is at http://126.96.36.199/
Software to use for other applications
- Armbian Linux Based: Customized for the Dreamcatcher
Suggested starting points are: “sudo nmtui” or armbian-config
- Dreamcatcher Chat Application
a. Code Block
sudo git clone https://github.com/Othernet-Project/Dreamcatcher-Packet-Tester
b. then just run the executable Code Block
c. the output should look like this:
" Dreamcatcher Chat (v.0.0 alpha)
" Select operating frequency (MHz):
The value you enter is mixed with a Base Starting freq of 2400 MHz for a resulting +/- actual operating frequency
Power Supply Options:
- Power Cubes Minimum 5vdc 2 amps https://www.iclever.com/products/iclever-usb-type-c-with-power-delivery-30w-usb-wall-charger-adapter-for-iphone-x-8-8-plus
- Uninterruptible Power Supplies (UPS) batteries https://www.easyacc.com/en/986-easyacc-megacharge-doubin-20000mah-usb-c-power-bank.html
- Solar Power and Backup Sources
It is recommended to place your Dreamcatcher at least a few feet from any RF generating sources (good example being a WiFi Access Point). Degraded download performance and system lock-ups have been reported when the Dreamcatcher was located very close to a WiFi Access Point.
Work Around for “No more sessions” Issue
This is a bug in Skylark 5.5 which will be fixed in the next release, but in the mean time try the following: Using a Firefox Web Browser, go to about:config in the address bar, and search for network.captive-portal-service.enabled which will show true
select that line -
then right click on the highlighted line to Toggle it false -
This will now allow you to access Skylark in Othernet WiFi Hotspot AP mode.
Acquiring the Satellite
Case Options and Antenna Mounting Options
- Using a Conical shell to improve reception
- Collection of Othernet Reception Enhancements (horns/shells and satellite dishes)
- Using Commercial dishes (see document linked above)
- 3D Printable Case Thread and the STLs on Thingiverse
Unique information specific to which satellite is selected
- North America (current as of Fall 2018)
SES-2 at 087 West
Using linear transponder 11,902.400 MHz vertical polariation
- South Asia
Transceiver Semtech sx1280/1
datasheet (137 pages long) https://www.semtech.com/uploads/documents/DS_SX1280-1_V2.2.pdf
** Lora, lorawan, fsk, SDR#, ect.
Single USB type A for connecting devices
Two micro type B usb for 5vdc 2amp power,
the second micro usb labeled OTG may be also used for power, and serial terminal connections
Speaker jack and Speaker pin connector
1/8" (3.1 mm) mini both speaker and microphone jack appear to “stereo” l/r
LED 10 should flash when outputting an audio signal, but under Skylark 5.3 does not. This is a bug to be fixed in the future.
Two sma connectors Direct and LNB.
need more info on what the onboard lna performs
Supplied lnbf and jumper cable for SMA to type F coax
Maverick Satellite MKI pll single standard ku band 11.7 - 12.2GHz
10.750 GHz LO
Power 13 or 18 vdc max 135ma
Touch screen display
Power requirements 5v or 3.3v and 100ma
A 40 pin GPIO extension ribbon cable can be used to remotely mount the display
The two sd card slots
tested with up to 32GB micro cards. Must be good quality
Various “points” on the main board (no longer has a jtag)
uart terminals are typical interface is provided
Wifi mini usb device is supplied
8011n,g,b 2.4 GHz with rf power 13~17 dbm
Reset button - push and hold 10 seconds to interrupt the intermediate power buss
Ventilation and cooling requirements
Infra red scan shows the display, power regulator chip U-1 and Allwinner A13 to be warm
Schematic design layout
Othernet On-Line Status Reporting
Once your Dreamcatcher is running and connected to your local area network, Skylark has a component that reports the program’s “heartbeat” via the internet to Othernet’s Chicago, Illinois, USA, headquarters. This status screen can be viewed at https://status.othernet.is and looks like this - -
Othernet Satellite Radio
Othernet Satellite Radio is available by either use of the native Skylark App, or plugging a standard 3.5 mm stereo speaker into the speaker output plug on the Dreamcatcher Board. Audio is not stored in Skylark - - it is a live event. Othernet Satellite Radio is broadcasting Voice of America (VOA) News. New feeds will be announced on the Forum…
Method 1 - - Native audio/sound is found in the Radio App in Skylark Version 5.5. Select this method by going to Radio App the Applications Icons Screen
Play Othernet Satellite Radio directly or select Othernet Satellite Radio and open it in a new browser window. You can also run it in a RealPlayer or Windows Media Player if you copy your network URL to the player. For example http://192.168.xxx.xxx:8090/othernet.mp3
Method 2 - - Use of a speaker plugged into the standard 3.5 mm stereo output plug. Some users connect the speaker output to an FM MP3 Player transmitter so they can tune to Othernet Satellite Radio on a standard FM radio. If you use a device that requires external power from a USB cord, make sure to power it from a separate power source. The Dreamcatcher power budget cannot support it.
In order to increase the volume of the audio/sound for the Dreamcatcher speaker plug, it is necessary to make an “on the fly” software modification to Skylark that only remains in effect as long as you do not reboot the Dreamcatcher. This change has no effect on the Native audio/sound mentioned in Method 1.
There are 2 ways make this adjustment. The first way is by using the Dreamcatcher Touch Screen to increase/decrease the volume at the audio output plug - -
Touch Screen for Adjusting Audio Level
The second way (If you find the Touch Screen too sensitive to the touch) is follow the procedure discussed below to change the audio level.
Download PUTTY Enter the IP address and leave it in SSH Login with othernet/othernet type “sudo alsamixer” Enter your password “othernet”
Menus are at the bottom “Left Mixer” is currently “selected”. “arrow over once” meaning press the right arrow key once, to select “Power Ampl”, and then use the up/down arrow keys to increase/decrease volume.
Other Software Options
Future options may allow the setting to be stored: type “sudo alsactl store”
Adjusting Display options
Selecting Coax inputs Note: The only valid configurations are when rfswitch1 is off and rfswitch2 is on, or the other way round.
a. Selecting Direct SMA Code block
echo 1 > brightness
echo 0 > brightness
Turn on Bias-Tee to the Coax Connector
a. Code block for 14 volt dc at both sma input connectors
echo 119 > export
echo out > direction
echo 1 > value
Adjusting SDR parameter
** RF Amplifier Gain
** Lora and other SX1281 parameters
The default for the chat application found in main.cpp:
modulationParams.PacketType = PACKET_TYPE_LORA;
modulationParams.Params.LoRa.SpreadingFactor = LORA_SF7;
modulationParams.Params.LoRa.Bandwidth = LORA_BW_0400;
modulationParams.Params.LoRa.CodingRate = LORA_CR_4_5;
PacketParams.PacketType = PACKET_TYPE_LORA;
PacketParams.Params.LoRa.PreambleLength = 0x08;
PacketParams.Params.LoRa.HeaderType = LORA_PACKET_VARIABLE_LENGTH;
PacketParams.Params.LoRa.PayloadLength = 50;
PacketParams.Params.LoRa.Crc = LORA_CRC_ON;
PacketParams.Params.LoRa.InvertIQ = LORA_IQ_INVERTED;
- Created 7/2/2018 @ac8dg
- Revised 7/6/2018 @ac8dg changed outernet to othernet
- added more hardware info 7/25/2018 @ac8dg
- added 3D printable case link @Tysonpower
- add audio alsamixer controls thanks to @jason_matonis 9/9/2018 @ac8dg
- Revised 9/10/2018 by @kenbarbi to add a User’s Guide for DC with Skylark 5.3
- Revised 9/11/2018 by @kenbarbi to add Easy Acc 20000mAh Power Backup, iCleaver Power cubes, SES-2 Footprints, Aquiring the satellite, and LNB Antenna enhancements.
- Revised 10/30/2018 by @kenbarbi to add Othernet Satellite Radio
- added port audio detail 11/06/2018 @ac8dg
- Revised 12/18/2018 by @kenbarbi to add live Dreamcatcher Skylark 5.4 link
- Revised 01/09/2019 by @kenbarbi to add live Dreamcatcher Skylark 5.5 information from User Guide
- Revised 01/15/2019 by @kenbarbi to add No more sessions workaround
- Revised 05/07/2019 by @wbrown to add Dreamcatcher placement note, and link to ‘reception enhancement’ PDF doc in the “Case Options and Antenna Mounting Options” section.
- Revised 05/16/2019 by @wbrown to update description of ‘reception enhancement’ doc to include dishes. Subject document updated off-site.
Wiki for Dreamcatcher 3.02q
This version was only available for a short period. Most of the information in the version 3.03 is applicable to the version 3.02.
Some different led’s and parts layout but generally the same.
You can use the same first time User’s Guide to Setting Up and Using Othernet Dreamcatcher v 3.03 With Skylark 5.5 at https://archive.othernet.is/Dreamcatcher3%20Skylark/Dreamcatcher_V_3.03_SL_5.5_User_Manual.pdf
Keep in mind earlier versions of Skylark before 5.3 no long work on Dreamcatchers.
Wiki for Dreamcatcher 2
- Alternative Uses for Dreamcatcher 2
flash this image to your sd card: https://archive.othernet.is/Dreamcatcher2%20Armbian/
(readme file in that folder useful to get started, guessing you’ve done this part before though)
Then before updating any software via apt-get upgrade!
Follow the info on this post Dreamcatcher - DONT UPGRADE KERNEL BEYOND 5.27!
Wiki for SDRx
Wiki for Lantern
Wiki for moRFeus
Software to a usb for frequencies control at https://archive.othernet.is/morfeus_tool_v1.6/