Lucky Miner LV07 - Firmware wanted

[unpainted]

FIRMWARE UPDATE
The latest update is also available for the LV07: https://github.com/un-painted-org/ESP-Miner/releases/tag/v2.6.0-LV07 or via the settings in AxeOS



Not much has changed for the operation of the miner. In AxeOS you now have better statistics and the settings allow you to adjust the frequencies/voltages without the F12 hack. At most, https://github.com/skot/ESP-Miner/pull/693 can bring about an improvement in the fallback to the second pool.
In the background, the entire bitaxe model-dependent part was completely restructured, which took me about 3 hours of work to get the code up to speed again for the LV07. But it was worth it. The new structure of skot is much easier to modify once you have adopted the new structure

[olimp77]

Hi I purchased a jTAG device with a 6 pin probe I would like to make a backup of the original firmware of my lucky miner 07
Can you tell me which software to use and the procedure, thanks

[unpainted]

Hi I purchased a jTAG device with a 6 pin probe I would like to make a backup of the original firmware of my lucky miner 07
Can you tell me which software to use and the procedure, thanks

Just search for „esp32 dump firmware“. I can't help any further as I have not been able to successfully restore the Lucky Miner firmware.

[olimp77]

thanks
unpainted congratulations on the work you are doing with your firmware you are great

[BlazingSwamps2]

Greetings, i have been reading this for a while, i want to flash my lv07, i dont have the clamp so im gonna solder pins use wires to hook up my uart adapter.
Would anyone lay down a schema of the pins? there are 6 and not sure which one to use.
Thanks for the great work that has been done, and tia!

https://i.postimg.cc/gJVJqRxM/lucky-miner-noctua-fan-big-improvement-v0-032k8uld2s7e1.jpg

[unpainted]

Would anyone lay down a schema of the pins? there are 6 and not sure which one to use.

The pins are labeled on the back of the board, see the picture in the top left corner.



Connect the ground of the adapter to the GND of the ESP pin. Then connect adapter TX with P_RX and adapter RX with P_TX crosswise.

To make the ESP32 flashable, you must switch to boot mode: Connect GPIO0 (IO0 on the LV07) on the ESP32 to ground (GND on the LV07). Then press the reset button on the back of the LV07 with a paper clip. Only then disconnect the ground from GPIO0.

[BlazingSwamps2]

Would anyone lay down a schema of the pins? there are 6 and not sure which one to use.

The pins are labeled on the back of the board, see the picture in the top left corner.

https://www.talkimg.com/images/2025/02/06/eJTxJ.th.jpeg

Connect the ground of the adapter to the GND of the ESP pin. Then connect adapter TX with P_RX and adapter RX with P_TX crosswise.

To make the ESP32 flashable, you must switch to boot mode: Connect GPIO0 (IO0 on the LV07) on the ESP32 to ground (GND on the LV07). Then press the reset button on the back of the LV07 with a paper clip. Only then disconnect the ground from GPIO0.

Thank you so much, i mean they are in order like this:

io0 - rx
gnd - tx
3v3 - en (last square pin)
(in the order of flipped image)

as for boot mode, i keep rx-tx attached then swap from io0 to gnd after clicking the switch?

Correct?
 

edit: just flashed via uart. all good, thank you!

[unpainted]

edit: just flashed via uart. all good, thank you!

Well done! And thanks for the feedback on your success!

[BlazingSwamps2]

edit: just flashed via uart. all good, thank you!

Well done! And thanks for the feedback on your success!

Hi and thanks, I modded the box a little with a better fan and new thermal grease: ASIC temp 39°C / VR 33°C. Your firmware has been running smoothly for many hours without a single issue, 550 MHz / 12.5 V ~ 1.05 TH on average.

I only see a significant discrepancy between my smart plug and Axeos power monitor. The smart plug (which I know is accurate) reports that the miner is drawing 27 W at the wall, while the dashboard only shows 22.5 W. I guess this difference is due to PSU efficiency, with the extra power likely dissipated as heat.

Would it be useful to have an estimated real power draw on the dashboard?
Something like:
Power 22.5 W (-10/15% (editable) PSU efficiency: 4.5 W = 27 W)
assuming one is using the stock power supply?

Thanks for your work!

[olimp77]

hello everyone
during the flashing phase what is the difference
powering lv07 with its power supply or powering it with usb ttl with 3.3v?

[fromport]

has been running smoothly for many hours without a single issue, 550 MHz / 12.5 V ~ 1.05 TH on average.

I hope it is 1.25Volt ;-)

I only see a significant discrepancy between my smart plug and Axeos power monitor. The smart plug (which I know is accurate) reports that the miner is drawing 27 W at the wall, while the dashboard only shows 22.5 W. I guess this difference is due to PSU efficiency, with the extra power likely dissipated as heat.

Would it be useful to have an estimated real power draw on the dashboard?
Something like:
Power 22.5 W (-10/15% (editable) PSU efficiency: 4.5 W = 27 W)
assuming one is using the stock power supply?

Thanks for your work!

The only thing measured is the power from the voltage regulator to the  ASIC's.
What is not measured:
The power to the ESP32 (minimum)
The efficiency of the VR (input is more than the output)
Power to the Fan (original fan has label of 12V 0.12amp = 1.44 watt)
and like you mentioned: the efficiency of the PSU (AC -> DC)

[unpainted]

hello everyone
during the flashing phase what is the difference
powering lv07 with its power supply or powering it with usb ttl with 3.3v?

As you mentioned, there are two possibilities: To supply the ESP32 via the LV07 with 3.3V or via the USB adapter. I prefer the method where the supply runs via the LV07. This prevents unpleasant roasting of the ESP32 if the voltage (in the worst case 5V) from the adapter is connected incorrectly. And if you only use the three cables RX, TX and GND, you can directly follow the mining in the log after the reset.

I only see a significant discrepancy between my smart plug and Axeos power monitor. The smart plug (which I know is accurate) reports that the miner is drawing 27 W at the wall, while the dashboard only shows 22.5 W. I guess this difference is due to PSU efficiency, with the extra power likely dissipated as heat.

Would it be useful to have an estimated real power draw on the dashboard?
Something like:
Power 22.5 W (-10/15% (editable) PSU efficiency: 4.5 W = 27 W)
assuming one is using the stock power supply?

The only thing measured is the power from the voltage regulator to the  ASIC's.
What is not measured:
The power to the ESP32 (minimum)
The efficiency of the VR (input is more than the output)
Power to the Fan (original fan has label of 12V 0.12amp = 1.44 watt)
and like you mentioned: the efficiency of the PSU (AC -> DC)

An offset of 6W has already been taken into account in the power measurement: https://github.com/un-painted-org/ESP-Miner/blob/LV07/main/power/power.c#L13

However, this offset is unfortunately not constant and also depends on the power supply unit used.

For the original power supply I get a good match with the default settings of voltage / frequency.

EDIT: At 550/1250, I get 28.3 W at the wall and 27.3 W in AxeOS

[moderator's note: consecutive posts merged]

[fromport]

EDIT: At 550/1250, I get 28.3 W at the wall and 27.3 W in AxeOS

I provide only 120V AC input to the PSU, making it even less efficient.

At 550/1250, fan fixed at 80% my LV07 hashrate is 1050GH/s, Asic temp is 55C, VR temp =51C, gui says 26.9 Watt, AC measured is 28.6 Watt
At 600/1200, fan fixed at 80% my LV07 hashrate is 1120GH/s, Asic temp is 55C, VR temp= 52C, gui says 26.9 Watt, AC measured is 28.5 Watt
Same power consumption but just over 6% more hash capacity.
Asic lottery ..
Worth checking out what each LV07's individual sweet spot is.

[BlazingSwamps2]

EDIT: At 550/1250, I get 28.3 W at the wall and 27.3 W in AxeOS

I provide only 120V AC input to the PSU, making it even less efficient.

At 550/1250, fan fixed at 80% my LV07 hashrate is 1050GH/s, Asic temp is 55C, VR temp =51C, gui says 26.9 Watt, AC measured is 28.6 Watt
At 600/1200, fan fixed at 80% my LV07 hashrate is 1120GH/s, Asic temp is 55C, VR temp= 52C, gui says 26.9 Watt, AC measured is 28.5 Watt
Same power consumption but just over 6% more hash capacity.
Asic lottery ..
Worth checking out what each LV07's individual sweet spot is.

Thank for feedback, Today i hook it up to a mw psu and do some tests.
I modded the fan system, machined the heatsisnk and replace the thermal grease, designed new panels for mounting noctua fans now im getting asic temp to 38c and vr 33c. Maybe my asics are tired.

Edit: confirm there are 5/6w of difference between axeos and smart plug (tried 3 different kinds) maybe a small sw bug.  The discrepancy get larger ( over 10w) with custom overclock.  

23w > 29w (meanwell psu) using default values.

[olimp77]

hello everyone
is it possible to install a 0.18 Ampere fan or do I risk burning my lv07
its original is 0.12 ampere

[s5ja]

I tried to update the firmware of LV07. I did what it says to do, but it seems to be a situation where there is no screen and only the fan is running. I tried to update the firmware again, starting from scratch, but nothing happened. I want to fix this problem, please help.

[s5ja]

I tried to update the firmware of LV07. I did what it says to do, but it seems to be a situation where there is no screen and only the fan is running. I tried to update the firmware again, starting from scratch, but nothing happened. I want to fix this problem, please help.

I mean after connecting the firmware to tx-rx, gnd-gnd and tx-rx, gnd-io0, something went wrong during flashing, I can't see the screen, I can't see the error message. I want to factory reset my lv07, please help

[unpainted]

I tried to update the firmware of LV07. I did what it says to do, but it seems to be a situation where there is no screen and only the fan is running. I tried to update the firmware again, starting from scratch, but nothing happened. I want to fix this problem, please help.

I mean after connecting the firmware to tx-rx, gnd-gnd and tx-rx, gnd-io0, something went wrong during flashing, I can't see the screen, I can't see the error message. I want to factory reset my lv07, please help

Please let us know which tool you used for flashing. Which version you flashed and what was logged by the flasher during the flashing process.

You can wire the LV07 (TX, RX and GND) and display the serial log using the terminal or Web Flasher. What appears there?

[unpainted]

FIRMWARE UPDATE

The latest update v2.7.1 is also available for the LV07: https://github.com/un-painted-org/ESP-Miner/releases/tag/v2.7.1-LV07

[JohnnyBitGoode]

FIRMWARE UPDATE

The latest update v2.7.1 is also available for the LV07: https://github.com/un-painted-org/ESP-Miner/releases/tag/v2.7.1-LV07

Hello unpainted, I have a quick question for you.

I'm still experimenting a lot with my LV07 and LV08 for that matter. I'm worried about excessive writing to the NVS data area of the ESP32 every time I make a minor change and need to press Save to have the change(s) take effect.

For instance when I change only the core voltage a slight amount, I need to press Save which updates the NVS partition with the new settings every time! I don't wish to do a save, just want to change the frequency or core voltage without writing unnecessarily to the NVS partition.

I have already placed buttons at the ends of the drop-down lists for both frequency and core voltage, I just haven't been able to work out the code that goes along with a mouse click. My question is, do you know how to do this?

Any help would be appreciated...