<p>Try following the <a href="https://github.com/luke-jr/bfgminer/blob/bfgminer/README.ASIC#L248" rel="nofollow noreferrer">ASIC instructions</a> provided with BFGMiner</p>

<blockquote>
  <p>These will autodetect if supported by the device; otherwise, you need to use
  the '--scan-serial erupter:' option to tell BFGMiner what device to
  probe; if you know you have no other serial devices, or only ones that can
  tolerate garbage, you can use '--scan-serial erupter:all' to probe all serial
  ports. They communicate with the Icarus protocol, which has some additional
  options in README.FPGA</p>
</blockquote>

<p>Try adding <code>--scan-serial-erupter:all</code> to the command for starting BFGMiner.</p>

CC BY-SA 3.0
2017-12-23T12:16:14.210Z
Do you know if BFGminer monitors the temperature of the devices?
Steve
CC BY-SA 3.0
2017-12-23T12:27:53.933Z
I've added a question [here](https://bitcoin.stackexchange.com/questions/66284/does-bfgminer-halt-processing-if-asic-miners-reach-a-high-temperature).
Steve
CC BY-SA 3.0
2017-12-23T07:22:43.107Z
2017-12-23T07:22:43.107Z
Ava Chow
<p>Bit of an experiment.</p>

<p>I have 2 x ASIC Miner Block Erupter 333Mh/s Rev. 3.00 plugged into powered USB ports.</p>

<p>I've downloaded and installed CP210x_Universal_Windows_Driver from <a href="https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers" rel="nofollow noreferrer">https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers</a>.</p>

<p>I see: </p>

<p><a href="https://i.sstatic.net/mRilm.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/mRilm.png" alt="enter image description here"></a></p>

<p>If I run bfgminer, I receive an error <code>"no devices found. Press 'M' and '+' to add"</code>. I press <code>M</code>, then <code>+</code>, but no devices are detected.</p>

<p>Help appreciated.</p>

<p><a href="http://www.bitcoinrigs.org/mining-resource/setup-asic-block-erupter-using-bfgminer" rel="nofollow noreferrer">This is the tutorial I was following</a>.</p>

<asic><bfgminer>
ASIC Miner Block Erupter & bfgminer: "no devices found"
Steve
# ASIC Miner Block Erupter & bfgminer: "no devices found"

(Asked by: username_0 on 2017-12-20)

Bit of an experiment.

I have 2 x ASIC Miner Block Erupter 333Mh/s Rev. 3.00 plugged into powered USB ports.

I've downloaded and installed CP210x\_Universal\_Windows\_Driver from <https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers>.

I see:

[![enter image description here](https://i.sstatic.net/mRilm.png)](https://i.sstatic.net/mRilm.png)

If I run bfgminer, I receive an error `"no devices found. Press 'M' and '+' to add"`. I press `M`, then `+`, but no devices are detected.

Help appreciated.

[This is the tutorial I was following](http://www.bitcoinrigs.org/mining-resource/setup-asic-block-erupter-using-bfgminer).

**Tags:** asic, bfgminer


---

## 1 answers

### Answer by username_1 on 2017-12-23. Score: 0 | Accepted answer

Try following the [ASIC instructions](https://github.com/luke-jr/bfgminer/blob/bfgminer/README.ASIC#L248) provided with BFGMiner

> These will autodetect if supported by the device; otherwise, you need to use
> the '--scan-serial erupter:' option to tell BFGMiner what device to
> probe; if you know you have no other serial devices, or only ones that can
> tolerate garbage, you can use '--scan-serial erupter:all' to probe all serial
> ports. They communicate with the Icarus protocol, which has some additional
> options in README.FPGA

Try adding `--scan-serial-erupter:all` to the command for starting BFGMiner.

> **Comments:**
> **username_0**: Do you know if BFGminer monitors the temperature of the devices?  
> **username_0**: I've added a question [here](https://bitcoin.stackexchange.com/questions/66284/does-bfgminer-halt-processing-if-asic-miners-reach-a-high-temperature).  

---

