# Sovol's Eddy hardware info **URL:** \ **Category:** Developers\ **Created:** [February 8, 2026, 8:27pm UTC](https://klipper.discourse.group/t/sovols-eddy-hardware-info/25610 "2026-02-08T20:27:05Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![nefelim4ag](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/nefelim4ag/32/2387_2.png) [@nefelim4ag](https://klipper.discourse.group/u/nefelim4ag)\ **Post date:** [February 8, 2026, 8:27pm UTC](https://klipper.discourse.group/t/sovols-eddy-hardware-info/25610/1 "2026-02-08T20:27:05Z")
[Discord topic](https://discord.com/channels/431557959978450984/1470135685456335012) So, it seems to be similar to the BTT Eddy coil, it is pure LDC1612 + Coil board. Reference frequency is 12MHz. Coil frequency according to dumps is ~8 385 484 Hz = 8.3 MHz Coil size seems to be: 9.3mm x 5.5mm Because 8.3MHz is way out of spec, it will require some Python side hacks at least. Or, maybe not: ```auto 12_000_000 / (1 << 28) = 0.0447 8_385_484 / 0.0447 = 187580101 hex(187580101) = '0xb2e3ec5' # is < 0x03ffffff ``` Some reference configs: ```auto [probe_eddy_current my_eddy_probe] reg_drive_current: 20 ``` > **PCB photos** > > ![image](https://global.discourse-cdn.com/free1/uploads/klipper/original/3X/a/a/aac36b8de966bd65520b260444994c6f38baca00.jpeg) > ![image](https://global.discourse-cdn.com/free1/uploads/klipper/original/3X/5/6/567bc9ca6c2e6e8e2b7a8ef31cad730e8c083a84.jpeg) > ![image](https://global.discourse-cdn.com/free1/uploads/klipper/original/3X/1/1/11675c77a89108d5cdfe4de6aa19e0c397df6f47.jpeg) Calibration output with the current master F\_IN\_DIV = 2: ```auto Frequency too noisy at step 1.810 -> 1.850 Frequency diff: 532.425, MAD_Hz: 244.914 -> MAD_Hz: 13.805 probe_eddy_current: noise 0.005354mm, MAD_Hz=115.202 in 1124 queries Total frequency range: 39014.937 Hz z_offset: 0.290 # noise 0.002908mm, MAD_Hz=90.512 z_offset: 0.530 # noise 0.003289mm, MAD_Hz=86.677 z_offset: 1.010 # noise 0.002055mm, MAD_Hz=49.632 The SAVE_CONFIG command will update the printer config file and restart the printer. ``` With F\_IN\_DIV=4: ```auto probe_eddy_current: noise 0.001774mm, MAD_Hz=21.036 in 2524 queries Total frequency range: 59393.613 Hz z_offset: 0.290 # noise 0.001932mm, MAD_Hz=59.151 z_offset: 0.530 # noise 0.001084mm, MAD_Hz=29.046 z_offset: 1.010 # noise 0.001801mm, MAD_Hz=38.516 z_offset: 2.010 # noise 0.001123mm, MAD_Hz=14.677 z_offset: 3.010 # noise 0.000231mm, MAD_Hz=1.931 The SAVE_CONFIG command will update the printer config file and restart the printer. ``` > **Old Hack** > > ~~So, hack for now is to change the value here~~ : [klipper/klippy/extras/ldc1612.py at master · Klipper3d/klipper · GitHub](https://github.com/Klipper3d/klipper/blob/master/klippy/extras/ldc1612.py#L94) > > ```DIFF > - self.sensor_div = 1 if self.clock_freq != DEFAULT_LDC1612_FREQ else 2 > + self.sensor_div = 1 if self.clock_freq != DEFAULT_LDC1612_FREQ else 4 > > ``` Hack is no longer required after `v0.13.0-650-gca8230d50`. With F\_IN\_DIV=4 and reg\_drive\_current=21 ```auto probe_eddy_current: noise 0.001730mm, MAD_Hz=28.248 in 2524 queries Total frequency range: 71648.040 Hz z_offset: 0.290 # noise 0.002046mm, MAD_Hz=77.419 z_offset: 0.530 # noise 0.001592mm, MAD_Hz=55.797 z_offset: 1.010 # noise 0.003279mm, MAD_Hz=82.519 z_offset: 2.010 # noise 0.000826mm, MAD_Hz=11.995 z_offset: 3.010 # noise 0.003684mm, MAD_Hz=38.474 The SAVE_CONFIG command will update the printer config file and restart the printer. ``` -Timofey ---
**Author:** ![asnajder](https://avatars.discourse-cdn.com/v4/letter/a/34f0e0/32.png) [@asnajder](https://klipper.discourse.group/u/asnajder)\ **Post date:** [February 9, 2026, 3:14pm UTC](https://klipper.discourse.group/t/sovols-eddy-hardware-info/25610/2 "2026-02-09T15:14:17Z")
Hey Timofey, thanks again for all the help! With F\_IN\_DIV=4 and reg\_drive\_current=22 ```auto probe_eddy_current: noise 0.001387mm, MAD_Hz=28.688 in 2525 queries Total frequency range: 87791.762 Hz z_offset: 0.290 # noise 0.001456mm, MAD_Hz=69.981 z_offset: 0.530 # noise 0.000158mm, MAD_Hz=6.995 z_offset: 1.010 # noise 0.000772mm, MAD_Hz=23.503 z_offset: 2.010 # noise 0.001014mm, MAD_Hz=19.484 z_offset: 3.010 # noise 0.001115mm, MAD_Hz=13.904 The SAVE_CONFIG command will update the printer config file and restart the printer. ``` Note that for reg\_drive\_current=21 and reg\_drive\_current=22 I had the bed at 60C during `PROBE_EDDY_CURRENT_CALIBRATE` ---
**Author:** ![asnajder](https://avatars.discourse-cdn.com/v4/letter/a/34f0e0/32.png) [@asnajder](https://klipper.discourse.group/u/asnajder)\ **Post date:** [February 9, 2026, 9:40pm UTC](https://klipper.discourse.group/t/sovols-eddy-hardware-info/25610/3 "2026-02-09T21:40:34Z")
edit: see github for latest updates: > **[GitHub - asnajder/sv08-config: Config from my Sovol SV08](https://github.com/asnajder/sv08-config)** > > Config from my Sovol SV08 ---
**Author:** ![asnajder](https://avatars.discourse-cdn.com/v4/letter/a/34f0e0/32.png) [@asnajder](https://klipper.discourse.group/u/asnajder)\ **Post date:** [February 14, 2026, 5:04pm UTC](https://klipper.discourse.group/t/sovols-eddy-hardware-info/25610/4 "2026-02-14T17:04:46Z")
Here is a better version of how to implement this, if anyone else would like to try: > **[GitHub - asnajder/sv08-config: Config from my Sovol SV08](https://github.com/asnajder/sv08-config/tree/main)** > > main please let me know if there are any issues, this was from memory, and of course as you know during testing things are done in all sorts of order ---
**Author:** ![davids6](https://avatars.discourse-cdn.com/v4/letter/d/e274bd/32.png) [@davids6](https://klipper.discourse.group/u/davids6)\ **Post date:** [August 10, 2026, 11:09am UTC](https://klipper.discourse.group/t/sovols-eddy-hardware-info/25610/5 "2026-08-10T11:09:08Z")
Hi there I am looking at your github to see if it gives me any answers to problems that i am having “converting” my BTT Eddy from Eddy NG to native Klipper TAP. I have Klipper v0.13.0-729-gcab2f004. Downloading Scipy seemed sensible, so I did. Then I looked at ldc1612.py - there is no “else 2” at line 94 nor anywhere else in the file. Can I assume that my Klipper has changed the file? ---
**Author:** ![nefelim4ag](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/nefelim4ag/32/2387_2.png) [@nefelim4ag](https://klipper.discourse.group/u/nefelim4ag)\ **Post date:** [August 10, 2026, 12:11pm UTC](https://klipper.discourse.group/t/sovols-eddy-hardware-info/25610/6 "2026-08-10T12:11:27Z")
Hi, > [@davids6](#): > > I have Klipper v0.13.0-729-gcab2f004. Downloading Scipy seemed sensible, so I did. Then I looked at ldc1612.py - there is no “else 2” at line 94 nor anywhere else in the file. > [@nefelim4ag](#): > > Hack is no longer required after `v0.13.0-650-gca8230d50`. Hope that helps, -Timofey ---
**Author:** ![davids6](https://avatars.discourse-cdn.com/v4/letter/d/e274bd/32.png) [@davids6](https://klipper.discourse.group/u/davids6)\ **Post date:** [August 10, 2026, 1:08pm UTC](https://klipper.discourse.group/t/sovols-eddy-hardware-info/25610/7 "2026-08-10T13:08:10Z")
Thank you.