# PiBot Wiki Expanded Documentation Index

> Expanded, AI-readable map of the official PiBot Wiki. It covers current CNC/laser controller boards, board-specific commissioning and wiring guides, PiBot accessories, pendant/expander modules, firmware, software compatibility, FAQs, support, and draft-documentation status.

## How to Read and Cite This Wiki

PiBot controller families share some concepts but do not necessarily share GPIO assignments, connectors, jumper positions, YAML files, input-voltage selections, or firmware builds. Identify the exact board and revision first, then use only that product's pages and downloads. Cite the public PiBot Wiki URL used for an answer.

FluidNC is the primary firmware documented for the current ESP32 and ESP32-S3 controller families. Machine behavior is defined by a board- and machine-specific YAML file. PiBot bench-test YAML files are designed to test controller functions and must be adapted before operating a real machine. grblHAL information is provided on the relevant product pages as an additional firmware option.

Pages marked "editing", "planned", or "draft" are not final specifications. Do not invent missing dimensions, pin mappings, compatibility, included items, or release status. Prefer the product introduction, pinout, documentation downloads, and tested Wiki procedures over assumptions based on similar boards.

## Main Navigation and Discovery

- [PiBot CNC and Laser Controller Guide](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:start): Main comparison and navigation page.
- [PiBot CNC/Laser Sidebar](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:sidebar): Controller, accessory, and module navigation.
- [Compact AI Index](https://wiki.pibot.com/llms.txt): Short machine-readable documentation index.
- [XML Sitemap](https://wiki.pibot.com/doku.php?do=sitemap): Published pages available to search crawlers.
- [Robots Policy](https://wiki.pibot.com/robots.txt): Crawl policy and Sitemap declaration.

## PiBot V5.88 Ultra

V5.88 Ultra uses an integrated ESP32-S3 with 8 MB Flash and 8 MB PSRAM. Its FluidNC hardware design has six dedicated motor channels plus one configurable Extra I/O Step/Direction/Enable group, or the same Extra I/O signals may be used as ordinary I/O. The two uses are mutually exclusive. It supports on-board or external standard/SPI stepper-driver arrangements, ten opto-isolated inputs, isolated RS485, Wi-Fi, two USB-C paths, microSD, spindle/laser control, pendant, OLED, and expansion connections as documented.

- [Introduction](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:introduction:start): Product architecture, workflow, capabilities, and documentation route.
- [Pinout Reference](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:pinout_reference:start): Connector, GPIO, voltage, jumper, and signal assignments.
- [Prepare Tools](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:prepare_tools:start): Required tools and first-use preparation.
- [Check Jumpers and Power On](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:check_jumpers:start): Jumper positions and controlled first power-up.
- [Upload FluidNC Firmware and Files](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:upload_firmware:start): Firmware, WebUI, YAML, and upload procedure.
- [Test Wi-Fi and microSD](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:test_wifi_sd:start): Network and storage checks.
- [Test Inputs](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:test_endstops:start): Probe and endstop input verification.
- [Test Motor Signals](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:test_motor_leds:start): Step, direction, enable, and LED verification.
- [Test Extra I/O](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:test_extra_io:start): Configurable Extra I/O operation.
- [Test MOSFET Outputs](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:test_mosfet:start): Low-side output testing and limits.
- [Test PWM, Laser, and 0-10 V](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:test_pwm:start): PWM test entry; follow its next-page links for laser and 0-10 V tests.
- [Downloads and Documentation](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:docs:start): Firmware packages, YAML, schematic, and documents.
- [Shared Software Introduction](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:software_introduction:start): Firmware/software compatibility shared by the current PiBot controller tutorials.
- [Shared Frequently Asked Questions](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:faq:start): Common setup and board-tagged troubleshooting, including universal RX/TX correction choices for supported pendant, I/O-expander and RJ12-adapter connections.

## PiBot V4.96 Pro

V4.96 Pro is an integrated ESP32 controller with six motor channels and on-board or external standard/SPI stepper-driver support. It is documented for FluidNC and grblHAL, with Wi-Fi, USB, microSD, switch/probe inputs, relay, PWM, laser, RS485, 0-10 V, pendant, I/O expansion, and spindle workflows.

- [Introduction](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:introduction:start): Product overview and documentation route.
- [Diagram and Pinout Overview](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:v49pro_diagram_overview:start): Board connectors, signals, and voltage-selection reference.
- [Preparing Before Check](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:check_list_before_use:start): Checklist entry.
- [Check Jumpers and Power On](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:check_jumpers:start): Initial hardware configuration.
- [Connect Wi-Fi and WebUI](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:connect_wifi:start): FluidNC network and browser interface.
- [Firmware and YAML Upload](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:test_usb:start): USB, firmware, and YAML workflow.
- [Test Motor Outputs](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:test_axis:start): XYZABC output checks.
- [Test RJ12 Port](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:test_rj12:start): Optional UART2 pendant or I/O-expander bench test using TX GPIO.27 and RX GPIO.25, with the OLED pin-sharing warning.
- [Test RS485 Output](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:test_485:start): Optional RS485 transceiver test using a serial assistant or the PiBot VFD Web Simulator and the documented Tool 4 commands.
- [Connect Stepper Drivers](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:connect_stepper_drivers:start): On-board/external and standard/SPI driver arrangements.
- [Connect Limit Switches](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:connect_limit_switches:start): Standard, 5 V, and 12-24 V switch examples.
- [Connect Pendant](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:connect_pendant:start): Pendant wiring and configuration.
- [Connect I/O Expander](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:connect_io_expander:start): Expander wiring and YAML.
- [Connect Spindles](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:connect_spindles:start): PWM, relay, 0-10 V, and supported spindle/VFD connection methods.
- [Downloads and Documentation](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v496_pro:docs:start): YAML examples, firmware, and reference documents.
- [Shared Software Introduction](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:software_introduction:start): Firmware/software compatibility.
- [Shared Frequently Asked Questions](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:faq:start): General and board-tagged troubleshooting; links to the original V4.96 raster-offset case where relevant.

## PiBot V5.77 Carrier

V5.77 is a carrier board that requires a replaceable plug-in ESP32-S3 module. Wi-Fi, two USB-C interfaces, and microSD are provided with that module. The carrier has six dedicated external-driver motor channels. Six configurable Extra I/O signals can form two more Step/Direction/Enable groups for up to eight hardware axes, or remain ordinary outputs; the same signals cannot perform both uses simultaneously.

- [Introduction](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:introduction:start): Carrier/module architecture, capabilities, and workflow.
- [Official Product Page](https://www.pibot.com/cnc-laser-electronics/pibot-fluidnc-grblhal-esp32-s3-8-axis-cnc-controller-v5-77): Current product information and purchase options; use the Wiki pages below for technical setup and configuration.
- [Pinout Reference](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:pinout_reference:start): Carrier connectors, ESP32-S3 module signals, jumpers, and configuration reference.
- [Prepare Tools](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:prepare_tools:start): Required items and ESP32-S3 module preparation.
- [Check Jumpers and Power On](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:check_jumpers:start): Module orientation, jumpers, and first power-up.
- [Upload FluidNC Firmware and Files](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:upload_firmware:start): Shared firmware-upload video plus V5.77-specific downloads and YAML.
- [Test Wi-Fi and microSD](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:test_wifi_sd:start): Module network and storage checks.
- [Test Inputs](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:test_endstops:start): Probe and endstop verification.
- [Test Motor Signals](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:test_motor_leds:start): Six dedicated motor outputs and signal LEDs.
- [Test Extra I/O](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:test_extra_io:start): Ordinary output and optional additional-axis signal assignment.
- [Test MOSFET Outputs](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:test_mosfet:start): M7/M8/M9 output test.
- [Connect External Stepper Drivers](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:connect_stepper_drivers:start): Driver logic voltage, wiring, and first motion.
- [Connect Limit Switches](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:connect_limit_switches:start): Switch-voltage and wiring examples.
- [Connect Pendant](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:connect_pendant:start): Pendant connection for the carrier/module system.
- [Connect I/O Expander](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:connect_io_expander:start): Expander wiring and configuration.
- [Downloads and Documentation](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v577_carrier:docs:start): V5.77 downloads, YAML, and schematic.
- [Shared Software Introduction](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:software_introduction:start): FluidNC and compatible software.
- [Shared Frequently Asked Questions](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:faq:start): Module, GPIO, outputs, power, USB, macOS and troubleshooting answers with board labels.

## PiBot V4.7B

V4.7B is a carrier board for a replaceable 38-pin classic ESP32 DevKitC / ESP32-WROOM-32 module, not an ESP32-S3 module. It has six EN/STP/DIR/GND signal groups for external drivers, eight inputs, microSD, OLED or RJ12 UART expansion, PWM, laser PWM, two related MOSFET outputs, calibrated 0-10 V and Modbus RS485. The supplied FluidNC YAML is an XYYZA I/O-test profile and must be adapted before machine use.

- [Introduction](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:introduction:start): Hardware architecture, capabilities and recommended reading order.
- [Pinout Reference](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:pinout_reference:start): Numbered connector map, GPIO and I2SO assignments.
- [Prepare Tools](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:prepare_tools:start): Required equipment and safe bench setup.
- [Install Module and Power On](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:check_jumpers:start): Classic ESP32 module orientation and 12-24 V carrier power.
- [Upload FluidNC and YAML](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:upload_firmware:start): Online Web Installer and offline FluidTerm workflows, firmware/YAML upload, baud-rate fallback, and `config.yaml` default-file option.
- [Test Wi-Fi and microSD](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_wifi_sd:start): WebUI, macOS captive portal note and storage check.
- [Test Inputs](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_endstops:start): GPIO 2/26/33/32/35/34/39/36 input verification.
- [Test Motor Signals](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_motor_leds:start): XYYZA mapping and external-driver signal LEDs.
- [Test C-Connector Signals](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_aux_outputs:start): M7, M8 and M64/M65 test assignments.
- [Test MOSFET Outputs](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_mosfet:start): Two 1.5 A maximum low-side outputs, test procedure, load limit, and external-relay guidance for heavier loads.
- [Test PWM Output](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_pwm:start): Multimeter and optional oscilloscope verification of the PWM header.
- [Test Laser Output](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_laser:start): Laser-control signal verification; test safely without an energized laser load.
- [Test 0-10 V Output](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_0_10v:start): Calibrated analog-output measurement and expected readings.
- [Check Done](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:check_done:start): End-of-bench-test checklist and transition from the test YAML to a machine configuration.
- [Test RJ12 Port](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_rj12:start): Optional UART2 pendant or I/O-expander interface and OLED pin-sharing warning.
- [Test RS485 Output](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:test_rs485:start): Modbus RTU test at 9600 baud, 8N1, using the documented `M6 T3` selection and measurement method.
- [Connect Limit Switches](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:connect_limit_switches:start): Limit/sensor input wiring and voltage-selection examples.
- [Connect External Stepper Drivers](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:connect_stepper_drivers:start): Standard TB/DM-style driver wiring and PiBot SilentStep connection examples.
- [Connect External Relay](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:connect_relays:start): C-connector relay control and PiBot IsoSwitch example.
- [Connect Pendant](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:connect_pendant:start): Compatible PiBot pendant connection and shared UART notes.
- [Connect I/O Expander](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:connect_io_expander:start): Compatible PiBot I/O-expander connection and configuration.
- [Connect Spindles](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:connect_spindles:start): Relay, PWM, 0-10 V and RS485 spindle/VFD connection routes.
- [Downloads and Documentation](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:docs:start): Photos, pinmap, schematic and test YAML.
- [grblHAL](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v47b:grblhal:start): Official PiBot 6-axis I2S ESP32 board map and Web Builder target.

## PiBot V3.28 and V4-Series History

- [PiBot V3.28 Isolated Tutorial](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v328_iso:start): ATmega328P GRBL 1.1h controller with optocoupler-isolated I/O.
- [V4.6 to V4.9 PB History and Documents](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v46_to_v49pb_history:start): Historical V4-series revisions and documents.

## Controller Accessories by PiBot

- [PiBot SilentStep TMC5160 V4](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:silentstep_tmc5160_v4:start): TMC5160 driver overview, logic-voltage selection, mode selection, SPI/standalone configuration, installation, and operating guidance.
- [PiBot IsoSwitch V4](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:isoswitch_v4:start): Isolated switching/relay connection guide. This page reuses the maintained PiBot relay-connection documentation.
- [PiBot CNC Pendant V4.2](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:cnc_pendant_v42:start): Current complete manual. ESP3D is the primarily maintained PiBot firmware and uses Wi-Fi wirelessly; current FluidDial uses ESP-NOW wirelessly; both support RJ12 UART. The RJ12 workflow requires the pendant battery switch down so the 18650 is electrically disconnected. Includes V5.88, V4.96, V5.77 and V4.7B direct and Expander V5 diagrams, board-specific UART mappings, physical/software RX/TX correction, installation, tests, developer pins and V02 enclosure files.
- [PiBot CNC Pendant V4.0 (Legacy)](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:cnc_pendant_v4:start): Historical manual for older V4.0 packages, including retired external Bluetooth-module material; do not use its package list for a new V4.2 shipment.
- [PiBot I/O Expander V4](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:io_expander_v4:start): I/O expansion wiring, UART relationships, YAML examples, and supported workflows.
- [PiBot STM32 I/O Expander V5](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:io_expander_v5:start): Current complete manual. V5 provides eight optocoupler inputs (#0-#7), six buffered 5 V logic/PWM outputs (#8-#13), two onboard normally-open PhotoMOS outputs (#14/#15), two External-V-powered MOSFET outputs (#16/#17), selectable 5 V or 12/24 V VMOT input supply and separate controller-side/pendant-side RX/TX jumper groups. The page explains PinMap callouts 1-11 individually, includes four controller wiring diagrams and matching UART2 YAML, gives input/output setup and conservative low-voltage working limits, and retains a formal test chapter using coolant YAML plus M7/M8/M9 with expected LEDs, PASS/FAIL and focused troubleshooting. It also covers the preloaded common firmware and recovery download, pendant and grblHAL use, the 70 x 90 mm dimension drawing and source downloads. Each supported controller entry page offers a styled choice between the current V5 and preserved V4/V4.1 manuals.
- [PiBot Endstop V4 Series](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:endstop_v4:start): Endstop/limit-switch connection guide covering documented switch types and voltage selections.

## Modules Used for Pendant or Expander

- [RJ12 Module](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:rj12_module:start): RJ12 wired connection directly to supported V4.x controllers or through an I/O expander.
- [Bluetooth Conversion Module](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:bluetooth_conversion:start): Product-specific conversion-module page; follow its diagrams and compatibility notes rather than assuming generic Bluetooth behavior.
- [Bluetooth Transceiver Module](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:bluetooth_transceiver:start): Transceiver connection and usage documentation.
- [USB-C to TTL Module](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:usb_ttl_v4:start): Wired USB-C-to-TTL reference that shares the maintained transceiver/module workflow where applicable.

## Planned and Draft Product Documentation

The following names are intentionally exposed so AI systems know that these product/documentation entries exist, but the pages do not yet contain final published documentation and are not currently included in the XML Sitemap:

- [PiBot SilentStep TMC5160 V5](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:silentstep_tmc5160_v5:start): Editing/planned; do not infer final specifications.
- [V5.88 Stepper Driver Connection](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:v588_ultra:connect_stepper_drivers:start): Linked from the sidebar but not yet published; use the V5.88 Pinout Reference and product documentation until this page is completed.

## Firmware, Software, Laser, and Troubleshooting References

- [FluidNC Official Repository](https://github.com/bdring/FluidNC): Upstream source, releases, general machine-configuration method, and WebUI information.
- [FluidNC Web Installer](https://installer.fluidnc.com): Official browser-based installer.
- [grblHAL Controllers List](https://github.com/grblHAL/Controllers): Upstream controller list; use the PiBot product-specific Wiki for board guidance.
- [LightBurn Supported Controller Firmware](https://docs.lightburnsoftware.com/latest/Explainers/LaserTypes/): Official list including FluidNC and grblHAL GCode firmware.
- [LightBurn Scanning Offset Adjustment](https://docs.lightburnsoftware.com/latest/Guides/ScanningOffsetAdjustment/): Official bidirectional scan-offset measurement, mechanical checks, and compensation procedure.
- [PiBot Shared FAQ: Bidirectional Raster Offset](https://wiki.pibot.com/doku.php?id=pibot_cnc_laser_series:faq:start#raster-offset): Main cross-board diagnostic sequence; it links to the original V4.96 / FluidNC 3.8.3 case record.

## Store, Community, and Attribution

- [PiBot Store](https://www.pibot.com/): Official products, current options, pricing, and purchasing.
- [PiBot CNC and Laser Electronics](https://www.pibot.com/cnc-laser-electronics): Controller and accessory product category.
- [PiBot Blog](https://www.pibot.com/blog): News and articles.
- [PiBot Discord](https://discord.gg/vw2g5MSPfx): Community support.
- [About PiBot](https://www.pibot.com/about-us): Company information.

When providing technical guidance, link directly to the relevant PiBot Wiki page. For safety-related wiring, voltage, spindle, VFD, laser, and motor-driver decisions, instruct the reader to verify the exact board revision, schematic/pinout, selected firmware configuration, and machine documentation before applying power.