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  • meister
24 Mar 2026 09:50
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
generell finde ich es pratischer die konfiguration am pc zu machen (VM mit Linux geht auch), dann könnte man auch den TangNano9k programmieren.

Für das ECP5 board brauch man den programmer (usb-blaster, der funktioniert auch am PI und die toolchan auch (arm64) )

Zum betrieb am RPI4 kann man SPI (Jumperwire kabel) nutzen oder en W5500 Ethernet-Adapter (~4-5Euro).

Dann musst du aber noch schauen was du ansteuern möchtest, also z.B. Stepper,
da wird es mit den dev-boards etwas umständlich.

Wie soll denn dein test-aufbau aussehen ?

Oder wenn du eine 7c81hast kannst du die auch nutzen, brauchst aber wie einen PC/VM + USB-Blaster zum programmieren.
  • hitchhiker
24 Mar 2026 09:38
Replied by hitchhiker on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
Ok!

Aber was könnte man direkt nutzen ohne zusätzliche hardware? Direkt am rpi4?

Danke
  • feng
24 Mar 2026 09:17
Replied by feng on topic SmartSerial on cheap ESP32-8ch-Relais Card
The translation into English is:

"Is the 7I92 pin compiled as:

10 30 IOPort SSerial 0 TXData0 (Out)
11 31 IOPort SSerial 0 RXData0
?
  • feng
24 Mar 2026 09:12
Replied by feng on topic SmartSerial on cheap ESP32-8ch-Relais Card
The translation into English is:

"Do I only need this HAL configuration:

loadrt hm2_eth board_ip="10.10.10.10" config="num_encoders=1 num_pwmgens=1 num_stepgens=5 sserial_port_0=0xxxxxxx"

Or are there other settings required as well?"
  • meister
24 Mar 2026 08:41
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
I'm trying to decide on a connection for my satellites

Ethernet or Firewire Cables, 5V or 24V ?

* RJ45 is cheaper, but could be confused with Ethernet
* FireWire uses thicker cablesCheaper
* satellite boards can be built using 5V, but 24V is practical for many sensors and limit switches
* RJ45 and 5V are compatible with Mesa-SmartSerial (except for the firmware)

Does anyone have any ideas?
  • meister
24 Mar 2026 08:18
Replied by meister on topic SmartSerial on cheap ESP32-8ch-Relais Card
no, but you can see the new pins with:

halcmd show
  • feng
24 Mar 2026 08:13
Replied by feng on topic SmartSerial on cheap ESP32-8ch-Relais Card
Hello, I'm trying to clone this board. Do you have any HAL file references?
  • meister
24 Mar 2026 06:01
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
de.aliexpress.com/item/1005008834546994....gatewayAdapt=glo2deu

benötigt aber noch einen usb-blaster zum programmieren.
  • tommylight
23 Mar 2026 22:51
Replied by tommylight on topic THC not getting active even when "all seemingly needed" requirements are met
Screenshot of the settings page?
In the meantime, disable:
-auto volts
-void sense/void lock
-set the arcok high to 160V
-set the arcok low to 60V
-set VAD to 60-65%
-set the cut voltage to (in your case) 100V
-set the feed rate to 2000mm/m
-set the jog speed to roughly 2000mm/m
-press F9 to fire the torch
-press an arrow key to jog
-watch the LED's on screen for arcok/up/down
Material for testing, 2-3mm thick, current set to 40-60A
Make some test cuts, check the under side of the cuts for dross and how easy it is to remove it, adjust feed rate/ air pressure (only while air is ON) and cut voltage till you get nice clean cuts with little dross.
  • tommylight
23 Mar 2026 22:42
Replied by tommylight on topic Closed loop - encoder/position not updating while moving

It has somehow to do with the enabled stepper motors. As soon as the drive gets the enable signal the pins don´t change anymore (viewed them in hal config). Wen i check with the multimeter, the signal seems to be switching between 0.2V an 24V correctly (both with stepper enabled/disabled). Maybe it is an issue with those cheap breakout boards ?
That is almost always an interference/wiring/grounding/shielding issue, and cheap BOB's with optocouplers are very slow so will limit speed a lot, the ones with input buffers should be OK.
But, 24V? What encoders are those?
Upload some pictures of the wiring here so we can have a look.
  • tommylight
23 Mar 2026 22:33
Replied by tommylight on topic Using the BIQU MicroProbe v2.0 sensor as a probe?
That is a version of BL-Touch sensor for 3D printers, usually 5 wires, +5V, 2XGND, sense pin and a servo pin that drives the sensing bit up/down.
Should be pretty easy to make it work, the "push sensor down"/"pull sensor up" logic should be similar to RC servo, but i never bothered to check, despite having several in use on Voron's i built.
Precision is quite high and temperature drift is quite low, but i doubt it is precise enough for a mill, should be more than enough for most routers.
  • abs32
23 Mar 2026 21:15
Using the BIQU MicroProbe v2.0 sensor as a probe? was created by abs32
www.amazon.com/MicroProbe-Leveling-Print...ruders/dp/B0C89G7YH2
Colleagues, here is a device. Electrical connections: 5 wires. 
Connector: 5-wire, compatible with BLTouch:
    Black — GND (ground)
    Red — +5V
    Yellow — Servos (rod control)
    White — Probe (output signal)

Has anyone tried this? I'd love to hear about your experience using it as a probe. The ad highlights a very appealing feature—the
trigger weight is only 5 grams.

 
  • backyardengineer
23 Mar 2026 20:08
Replied by backyardengineer on topic Closed loop - encoder/position not updating while moving
It has somehow to do with the enabled stepper motors. As soon as the drive gets the enable signal the pins don´t change anymore (viewed them in hal config). Wen i check with the multimeter, the signal seems to be switching between 0.2V an 24V correctly (both with stepper enabled/disabled). Maybe it is an issue with those cheap breakout boards ?
  • GeneRF
23 Mar 2026 19:59
Replied by GeneRF on topic Variable input during automatic operation
As I said, change of workpiece length, or as you say, change of depth.
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