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1  Alternate cryptocurrencies / Mining (Altcoins) / Mining profitability, BTC vs BCH on: November 11, 2017, 11:01:24 PM
Not sure if this question belongs here but WTF, its gotta go somewhere.

Everyone knows about recent surge in BCH. WhatToMine site shows BCH profitability almost double BTC and network hashrate is almost at parity.

It seems obvious to mine BCH right this minute... but hold on. What about transaction fees? They are through the roof on BTC blocks!

So just thinking...

1. Could it be better for me, right now, to mine BTC at pool that shares fees with miners instead of BCH even though WhatToMine tells me otherwise?
2. Has anyone mined both BTC and BCH over the last 24 hours to have a real comparison?
3. How does WhatToMine site deal with transaction fees? Seems their coin profitability ranking might not be so good for our current scenario if it does not consider fee sharing?
2  Bitcoin / Mining speculation / 58coin.com on: November 08, 2017, 04:21:35 PM
Anyone know about this outfit? They just mined 4 out of the last 9 blocks. Wow.

Obviously Chinese but who are they and who is backing them?
3  Bitcoin / Mining software (miners) / Yet Another Mining Monitor on: October 28, 2017, 06:14:02 PM
There are many great commercial apps and open source efforts on these forums for monitoring your mining rigs. I am going to present yet another dashboard showing hash rate and temperature for your Antminer (or any miner that supports cgminer api) with mobile support and alerts (email and text).

It's a fun simple project for the DIY crowd that I put together on a slow Friday afternoon using a python script and an existing IOT platform called Cayenne.

First, a live demo. https://cayenne.mydevices.com/shared/59f4906081d3a96b067a9bb5/project/ce744209-17a3-494c-965a-1280d18488b2
Data is updated once a minute.

Source and readme are here: https://github.com/dfoderick/Mining

Important sections of the readme are pasted below.


Use uploadhash.py to upload hash rate and miner temps to mydevices.com Cayenne dashboard.
This will make the miner stats available on mobile device or web interface where you can get alerts when your miner is in trouble.

Requirements
============
 - Any computer that can run Python
 - A miner like the Antminer S9 that supports the cgminer api.

Steps
============
1. Make sure python is set up on your computer. If you have problems then make sure you install dependencies. Do a google search.
 - sudo apt-get install build-essential python-dev python-openssl
 - sudo python setup.py install

2. install mqtt lib. This is a client to communicate with mydevices.com Cayenne back end.
 - sudo pip install paho-mqtt

3. Create your dashboard by signing up at https://mydevices.com/ and following the prompts. If you have any issues with the mydevices.com or Cayenne setup then get help on their community forum. Add a device through their site to generate a user id, password id, and client id that you will use in step 5. This will allow you to authenticate to their back end.

4. Download https://github.com/ckolivas/cgminer/blob/master/api-example.py
Save it in any folder on your rpi and rename it minerapi.py
IMPORTANT! Make one small edit to the file. Comment out the following line by putting a # at the beginning of the line.
#response = json.loads(response)
The reason is that we want the raw json string coming from the miner as output, not the python object.

5. Put the file uploadhash.py in the same directory as minerapi.py and then customize with your settings.
Edit the script uploadhash.py with the following info:
 - ip address of your miner
 - mydevices.com Cayenne user, password, and client id from step 2. IMPORTANT! You get this info from the Cayenne dashboard. These values are different than your login and password on that site.
 - modify the polling interval if you so choose.
 
6. Now run the script, "python uploadhash.py". You can add the script as a cron task by using "crontab -e" and set it up to run @reboot. Google for instructions.
If the script is running correctly then you will see the diagnostics output on the console with your miner stats, hashrate and temp.  
user@raspberrypi:~/mydevices $ python uploadhash.py
13639.64 3 60 55 59
13622.19 3 60 55 60
13634.74 3 61 56 61
...

7. Check your Cayenne dashboard and configure your widgets. Don't forget to set up Cayenne Alerts from your dashboard to get notified when hashrate falls or temps rise.

[EDIT:] Clarified that Raspberry Pi is not required. Will run on any computer.
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