GRBL Breakout Boards for Teensy 4.x Uses the grblHAL Teensy 4 version.
A small number of changes, mostly cosmetic. Also added mounting holes for I2C and Serial I/O daughter boards. Now available on Tindie.
grblHAL support for Ethernet is now pretty solid. I have updated the User Manual to include instructions on using Ethernet.
I have finished 2 new 5 axis versions based on the Teensy 4.1. One supports an Ethernet interface and the other supports a USB interface. I will be making a few "Unkit" boards avalable. These have all the surface mount components installed (with the execption of the EEPROM IC). Teensy 4.1 not included. The price is $27.99 USD. It is available on Tindie. There are a limited number but if there is enough interest, I will reorder more.
The "Unkit" board.
T41U5XBB - Fully populated USB based version.
T41E5XBB - Fully populated Ethernet version
Lots of new features!
- 5 Axis control outputs – 5V compatible.
- Independent enables for each axis.
- 10 Opto-isolated inputs including standard GRBL controls and limits switches for all axes.
- 7 Relay Outputs – Spindle, Mist Coolant, Flood Coolant, Dust Collector and 3 auxiliary relays. Each output can control a relay coil directly or 5V TTL (SSR compatible) devices.
- Dust Extraction relay support. Activated by spindle enable.
- Separate control of Dust Collector relay via pin header.
- Relay coil voltage switchable between 5V and 12V.
- Standard GRBL spindle control outputs – 5V compliant.
- 0-10V spindle control output.
- Screw Terminals for reliable connections available for most I/O.
- 4 Digital Inputs – EMI protected, 15.9KHz low pass filter, Schmitt Trigger.
- I2C header.
- EEPROM footprint for SOIC8 devices.
- LED indicators for 5V and 12V.
- USB interface.
- Ethernet interface. (T41E5XBB only)
- Serial I/O Header
Prebuilt versions of grblHAL are available to directly load into the Teensy 4.1 Follow the instructions here.
The two versions currently share a common schematic and PCB layout. This may not be the case in the future. Schematic is here.
The User Manual is available here.
Available here This is fairly expensive. For a less costly approach, you can use the Gerber files below to order from more cost effective fabs.
Gerbers are available here. Board size is 85 x 96 mm, 2 layer, 1.6 mm thickness.
A brief guide to building grblHAL from source for the breakout board is here.
- 4 Axis control outputs – 5V Compatible.
- 8 Opto-isolated inputs.
- Full spindle control outputs – 5V compatible.
- 0-10V spindle control output.
- 7 Relay Outputs.
- Relay voltage switchable between 5V and 12V.
- Dust Extraction relay output slaved to spindle.
- Screw Terminal I/O for reliable connections.
- I2C header.
- EEPROM footprint for SOIC8 devices.
- LED indicators for 5V and 12V.