{"product_id":"teensy-4-1-lockable","title":"Teensy 4.1, Lockable","description":"\u003cstyle\u003e\n    .product-copy {\n      line-height: 1.7;\n      color: #222;\n      font-size: 16px;\n    }\n\n    .product-copy h2,\n    .product-copy h3 {\n      margin-top: 28px;\n      margin-bottom: 12px;\n      line-height: 1.3;\n    }\n\n    .product-copy p {\n      margin-bottom: 16px;\n    }\n\n    .product-copy ul {\n      margin: 12px 0 18px 22px;\n      padding: 0;\n    }\n\n    .product-copy li {\n      margin-bottom: 8px;\n    }\n\n    .product-copy table {\n      width: 100%;\n      border-collapse: collapse;\n      margin: 18px 0;\n      font-size: 15px;\n    }\n\n    .product-copy th,\n    .product-copy td {\n      border: 1px solid #ddd;\n      padding: 12px;\n      text-align: left;\n      vertical-align: top;\n    }\n\n    .product-copy th {\n      background: #f7f7f7;\n      font-weight: 700;\n      width: 35%;\n    }\n\n    .product-copy .note {\n      background: #fff8e5;\n      border-left: 4px solid #f0b429;\n      padding: 12px 14px;\n      margin: 18px 0;\n      border-radius: 6px;\n    }\n\n    .product-copy .faq-list details {\n      border: 1px solid #ddd;\n      padding: 14px 16px;\n      margin-bottom: 10px;\n      border-radius: 8px;\n      background: #fff;\n    }\n\n    .product-copy .faq-list summary {\n      cursor: pointer;\n      font-weight: 700;\n    }\n  \u003c\/style\u003e\n\u003cdiv class=\"product-copy\"\u003e\n\u003ch2\u003eTeensy 4.1 Lockable with Copy Protection\u003c\/h2\u003e\n\u003cp\u003eThe Teensy 4.1 Lockable with Copy Protection is a high-speed microcontroller board for advanced embedded projects, secure products, robotics, data logging, audio, controls, and connected devices. It runs on a 600MHz ARM Cortex-M7 processor and includes large memory, many I\/O pins, Ethernet support, USB host support, and a built-in microSD card socket.\u003c\/p\u003e\n\u003cp\u003eThis lockable version is made for developers who want to protect finished firmware in production. When properly set up, the board can be locked into secure mode so only encrypted code made with your private key can run.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Teensy 4.1 Lockable?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFast 600MHz ARM Cortex-M7 processor for demanding projects.\u003c\/li\u003e\n\u003cli\u003eLockable version for production code security.\u003c\/li\u003e\n\u003cli\u003e8MB flash and 1024K RAM for larger programs and buffers.\u003c\/li\u003e\n\u003cli\u003eBuilt-in microSD socket for data logging and file storage.\u003c\/li\u003e\n\u003cli\u003e10\/100 Ethernet PHY for wired network projects.\u003c\/li\u003e\n\u003cli\u003eUSB host support for selected USB devices.\u003c\/li\u003e\n\u003cli\u003e55 total I\/O pins with 35 PWM-capable pins.\u003c\/li\u003e\n\u003cli\u003eGood for robotics, audio, logging, control, and secure products.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat You Can Build\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecure embedded product prototype\u003c\/li\u003e\n\u003cli\u003eHigh-speed robotics controller\u003c\/li\u003e\n\u003cli\u003eEthernet-connected sensor system\u003c\/li\u003e\n\u003cli\u003eMicroSD data logger\u003c\/li\u003e\n\u003cli\u003eAudio processing project\u003c\/li\u003e\n\u003cli\u003eUSB host device project\u003c\/li\u003e\n\u003cli\u003eLED and pixel controller\u003c\/li\u003e\n\u003cli\u003eCAN bus test project\u003c\/li\u003e\n\u003cli\u003eMotor and motion control system\u003c\/li\u003e\n\u003cli\u003eAdvanced Arduino IDE-compatible project\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s Included?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTeensy 4.1 Lockable with Copy Protection board - 1 pc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"note\"\u003e\n\u003cp\u003eNote: Headers are not included. USB cable, Ethernet cable, microSD card, sensors, and other accessories are sold separately unless stated in the package.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eHigh-performance lockable microcontroller development board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eTeensy 4.1 Lockable with Copy Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eDEV-28369\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProcessor\u003c\/th\u003e\n\u003ctd\u003eARM Cortex-M7 at 600MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMain Chip\u003c\/th\u003e\n\u003ctd\u003eNXP MIMXRT1062DVJ6B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlash Memory\u003c\/th\u003e\n\u003ctd\u003e8MB flash\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRAM\u003c\/th\u003e\n\u003ctd\u003e1024K RAM, with 512K tightly coupled memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTotal I\/O Pins\u003c\/th\u003e\n\u003ctd\u003e55 total I\/O pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBreadboard-Friendly I\/O\u003c\/th\u003e\n\u003ctd\u003e42 pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePWM Pins\u003c\/th\u003e\n\u003ctd\u003e35 PWM pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAnalog Inputs\u003c\/th\u003e\n\u003ctd\u003e18 analog input pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCommunication\u003c\/th\u003e\n\u003ctd\u003e8 serial ports, 3 SPI ports, 3 I2C ports, and 3 CAN bus ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAudio Support\u003c\/th\u003e\n\u003ctd\u003e2 I2S digital audio ports and 1 S\/PDIF digital audio port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eBuilt-in microSD card socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUSB\u003c\/th\u003e\n\u003ctd\u003eUSB device and USB host support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEthernet\u003c\/th\u003e\n\u003ctd\u003e10\/100 Mbit Ethernet PHY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSecurity Feature\u003c\/th\u003e\n\u003ctd\u003eLockable copy protection with programmable security fuse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSoftware Support\u003c\/th\u003e\n\u003ctd\u003eArduino IDE with Teensy boards add-on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLogic Level\u003c\/th\u003e\n\u003ctd\u003e3.3V logic. Pins are not 5V tolerant.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003ctd\u003eSecure products, robotics, audio, data logging, Ethernet projects, controls, and high-speed embedded systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCopy Protection Notes\u003c\/h3\u003e\n\u003cp\u003eThis lockable board is best for final products where firmware protection is needed. It allows secure mode to be enabled using a private encryption key.\u003c\/p\u003e\n\u003cp\u003eLocking the board is a serious step. Wrong fuse settings can permanently damage the board. Losing your key can also prevent future programming. For early testing and normal prototyping, use a standard Teensy board first.\u003c\/p\u003e\n\u003ch3\u003ePower and Wiring Notes\u003c\/h3\u003e\n\u003cp\u003eTeensy 4.1 uses 3.3V logic. Do not connect 5V signals directly to its pins. Using 5V input signals may damage the board.\u003c\/p\u003e\n\u003cp\u003eThe board can be powered through USB for basic testing. When using external power through VIN, follow Teensy power guidelines carefully.\u003c\/p\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThis is the lockable copy protection version.\u003c\/li\u003e\n\u003cli\u003eHeaders are not included.\u003c\/li\u003e\n\u003cli\u003eUse 3.3V-safe sensors and modules.\u003c\/li\u003e\n\u003cli\u003eUse a compatible USB cable for programming.\u003c\/li\u003e\n\u003cli\u003eInstall Teensy support in Arduino IDE before uploading code.\u003c\/li\u003e\n\u003cli\u003eUse the standard Teensy board first for early prototyping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRecommended Add-ons\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/teensy\"\u003eTeensy boards and accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pins-headers\"\u003ePins and headers\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/sensors\"\u003eSensors and modules\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/micro-sd\"\u003eMicroSD cards and storage\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/usb-cables\"\u003eUSB cables\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-list\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Teensy 4.1 Lockable used for?\u003c\/summary\u003e\n\u003cp\u003eIt is used for high-speed embedded projects and final products that need firmware copy protection.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs this good for beginners?\u003c\/summary\u003e\n\u003cp\u003eThis board is best for advanced users. For basic learning, a standard Teensy or Arduino-compatible board is easier to start with.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes this version have Ethernet?\u003c\/summary\u003e\n\u003cp\u003eYes. This version includes a 10\/100 Mbit Ethernet PHY.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre headers included?\u003c\/summary\u003e\n\u003cp\u003eNo. Headers are not included.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre the pins 5V tolerant?\u003c\/summary\u003e\n\u003cp\u003eNo. The pins use 3.3V logic and are not 5V tolerant.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"circuitrocks","offers":[{"title":"Default Title","offer_id":52826702381345,"sku":"DEV-28369","price":2316.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/files\/28369-teensy-4p1-lockable-front.webp?v=1781070678","url":"https:\/\/circuit.rocks\/products\/teensy-4-1-lockable","provider":"circuitrocks","version":"1.0","type":"link"}