{"product_id":"emerald-dingo-esp32-plotter-controller","title":"Emerald Dingo — ESP32 Plotter Controller (RevB)","description":"\u003cp\u003e\u003cstrong\u003eEmerald Dingo\u003c\/strong\u003e is the two-axis stepper controller behind every terraPen — an ESP32-based board with onboard TMC2130 driver sockets, built for plotters, drawing machines and small CNC builds. If you're building your own machine rather than buying one ready-made, this is the part that does the driving.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eESP32 module integrated directly onto the board (RevB) — no separate dev board to wire in\u003c\/li\u003e\n\u003cli\u003eTwo-axis stepper control; supports both standard and CoreXY kinematics\u003c\/li\u003e\n\u003cli\u003eSolenoid or relay-controlled tool head support\u003c\/li\u003e\n\u003cli\u003eAll peripheral connectors are JST PH2.0 — everything clips in, no soldering required\u003c\/li\u003e\n\u003cli\u003eDedicated E-Stop connector, plus onboard microSD slot for job files\u003c\/li\u003e\n\u003cli\u003eUSB-C for power and for flashing firmware\u003c\/li\u003e\n\u003cli\u003eRuns an open-source Grbl_ESP32 firmware fork\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdd the \u003cstrong\u003eZ-axis add-on\u003c\/strong\u003e for a proper pen-lift or tool-height third axis — it plugs straight into Emerald Dingo's auxiliary port and uses stepper stall detection for sensorless endstop homing, no physical limit switch needed on Z.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis is a bare controller board for builders and tinkerers — it's the electronics only, not an assembled terraPen. If you'd rather have a complete, ready-to-plot machine, see the \u003ca href=\"\/products\/terrapen-s-a2-pen-plotter\"\u003eterraPen A2X\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eFull schematics, KiCad source and firmware: \u003ca href=\"https:\/\/github.com\/theworkisthework\/ESP32_Plotter_Controller\"\u003eESP32_Plotter_Controller on GitHub\u003c\/a\u003e · \u003ca href=\"https:\/\/github.com\/theworkisthework\/z-axis-addon\"\u003eZ-axis add-on on GitHub\u003c\/a\u003e.\u003c\/p\u003e","brand":"terraPen","offers":[{"title":"No Z-axis, no drivers (BYO) \/ No \/ No","offer_id":64506484162937,"sku":null,"price":35.0,"currency_code":"GBP","in_stock":true},{"title":"Z-axis add-on, no drivers (BYO) (+£15) \/ No \/ No","offer_id":64506493927801,"sku":null,"price":50.0,"currency_code":"GBP","in_stock":true},{"title":"No Z-axis, no drivers (BYO) \/ Yes (+£80) \/ No","offer_id":64506498154873,"sku":null,"price":115.0,"currency_code":"GBP","in_stock":true},{"title":"Z-axis add-on, no drivers (BYO) (+£15) \/ Yes (+£80) \/ No","offer_id":64506498187641,"sku":null,"price":130.0,"currency_code":"GBP","in_stock":true},{"title":"No Z-axis, no drivers (BYO) \/ No \/ Yes (+£5)","offer_id":64807032848761,"sku":null,"price":40.0,"currency_code":"GBP","in_stock":true},{"title":"Z-axis add-on, no drivers (BYO) (+£15) \/ No \/ Yes (+£5)","offer_id":64807032881529,"sku":null,"price":55.0,"currency_code":"GBP","in_stock":true},{"title":"No Z-axis, no drivers (BYO) \/ Yes (+£80) \/ Yes (+£5)","offer_id":64807032914297,"sku":null,"price":120.0,"currency_code":"GBP","in_stock":true},{"title":"Z-axis add-on, no drivers (BYO) (+£15) \/ Yes (+£80) \/ Yes (+£5)","offer_id":64807032947065,"sku":null,"price":135.0,"currency_code":"GBP","in_stock":true},{"title":"No Z-axis, 2x drivers included (+£10) \/ No \/ No","offer_id":64807034487161,"sku":null,"price":45.0,"currency_code":"GBP","in_stock":true},{"title":"No Z-axis, 2x drivers included (+£10) \/ Yes (+£80) \/ No","offer_id":64807034519929,"sku":null,"price":125.0,"currency_code":"GBP","in_stock":true},{"title":"No Z-axis, 2x drivers included (+£10) \/ No \/ Yes (+£5)","offer_id":64807034552697,"sku":null,"price":50.0,"currency_code":"GBP","in_stock":true},{"title":"No Z-axis, 2x drivers included (+£10) \/ Yes (+£80) \/ Yes (+£5)","offer_id":64807034585465,"sku":null,"price":130.0,"currency_code":"GBP","in_stock":true},{"title":"Z-axis add-on + 3x drivers included (+£30) \/ No \/ No","offer_id":64807034749305,"sku":null,"price":65.0,"currency_code":"GBP","in_stock":true},{"title":"Z-axis add-on + 3x drivers included (+£30) \/ Yes (+£80) \/ No","offer_id":64807034782073,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Z-axis add-on + 3x drivers included (+£30) \/ No \/ Yes (+£5)","offer_id":64807034814841,"sku":null,"price":70.0,"currency_code":"GBP","in_stock":true},{"title":"Z-axis add-on + 3x drivers included (+£30) \/ Yes (+£80) \/ Yes (+£5)","offer_id":64807034847609,"sku":null,"price":150.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/6862\/6498\/files\/EmeraldDingoTopdown_9852a1d6-d5df-4b47-adf7-1100b46c2630.jpg?v=1791311061","url":"https:\/\/terrapen.xyz\/products\/emerald-dingo-esp32-plotter-controller","provider":"TerraPen","version":"1.0","type":"link"}