𝕷𝖎𝖇𝖗𝖊𝖙𝖊𝖈𝖍
𝕷𝖎𝖇𝖗𝖊𝖙𝖊𝖈𝖍 𝕰𝖓𝖙𝖊𝖗𝖕𝖗𝖎𝖘𝖊𝖘
LibreTech Enterprises is a passionate advocate for Bitcoin and open-source technologies. We specialize in providing high-quality wallets signing devices, seed plates, and other Bitcoin accessories to ensure the security and convenience of your digital assets.
Website: Blog on Ideas Pertaining to Software and Emerging technology trends
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Consultations to Bitcoin Pipeline
https://nostrich.zone/s/lnp2pttd
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lnp2pttd@nostrich.zone
Coldcard Mk4
Secure your Bitcoin and sleep like a baby COLDCARD is the world’s most trusted and secure Bitcoin Signing Device (a.k.a Bitcoin hardware wallet). Bitcoin Only Verifiable Source Code Easy-to-use Ultra-Secure The Coinkite Coldcard Mk4 with upgraded secure elements, USB-C connector, new plastic, optional NFC, massive RAM for multisig, and much-much more. We have sourced our Coldcard stock directly from Coinkite. You can be sure that there the devices have not been tampered with by verifying the unique ID on the tamper-evident bag as Econoalchemist documented here. https://coldcard.com/docs/ultra-quick#checking-the-tamper-evident-bag
Bitcoin LNPoS Kit
The LNPoS device has the following features: + Create “offline” lightning invoices – Payment proof is via a secret available when the invoice is paid. + Create online lightning invoices – The device will poll for payment of the invoice after creation + Operate as a Lightning ATM allowing vending of sats via a LNURLw QR code + Creation of onchain bitcoin invoices via an xpub on the device – The device will poll the mempool for invoice payment. What’s included in the product? + One 3D printed LNPoS case + One LilyGo T-Display Keypad + One LilyGo TTGO ESP32 board + One JST 1.25 connector cable + One switch should you wish to install your own 3.7 volt battery in the case – The LilyGo TTGO board has a connector for a JST 1.25 connector. What you’ll need: If you want to run it without external power; a 3.7v battery of around 500mah – 1000mah A computer to flash and set up the LNPoS Flash your LNPoS device from a Chromium based browser using the LNbits installation tool. https://lnbits.github.io/lnpos/installer/ Disclaimer: LNPoS and LNbits are FOSS projects. The LNbits shop is not responsible for the LNPoS or LNBits software and cannot support the configuration or reflashing of the LNPoS device. The LNbits and Makerbits communities are excellent resources and have plenty of contributors who will be willing to help you out. We cannot be held responsible if you are unable to configure your own LNbits installation or set up the device with your own node’s settings
LNbits TPoS Thermal Receipt Printer
LNbits TPoS Thermal Receipt Printer Use this thermal receipt printer to give your customers receipts when they pay to the LNbits TPoS. One reciept printer can print receipts for multiple TPoS terminals that are all paying to the same LNbits wallet. You must supply your own power supply that can provide at least 2amps. This is important, a lower current supply will cause issues with receipt printing. Buy this as a preassembled item or as a kit to build yourself. The kit includes the following: One thermal printer One custom TPoS printer circuit board One unassembled plywood case and a 3D printed PCB board One ESP32-C3 super mini board One USB cable One roll of thermal receipt printer paper If you are buying the kit, you will need to be able to perform some simple soldering, glue a plywood case together, assemble the printer and flash the firmware to the esp32. https://github.com/lnbits/tpos-receipt-printer
LILYGO® TTGO T-Display 1.14 Inch LCD Control Board ESP32 Wireless Module WiFi Bluetooth Low Power Consumption Development Board
ESP32 WiFi Bluetooth Development Board What is the NSD? The LNbits Nostr Signing Device (NSD) serves as a secure alternative to storing private keys on a computer. Your private key is stored on the NSD and signs nostr messages on the device. The NSD works with a Chrome based browser and the Horse extension. It is an affordable, off-the-shelf solution designed to work with LilyGo’s T-Display board, but can be adapted for any ESP32. It is currently for desktop use only. Android and iOS devices are not supported. Join the LNbits community on Telegram for further information and support. Setting Up the Nostr Signing Device (NSD) – User Guide Follow these steps to set up your NSD. Make sure you are using a Chromium browser, such as Chromium, Google Chrome or Microsoft Edge. Install the CP210x USB to UART Bridge drivers from the Silicon Labs website: https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers Connect the NSD to your computer. Open the installer webpage in Chrome/Chromium: https://lnbits.github.io/nostr-signing-device/installer/ a. Click “Flash”, connect the NSD, and select your device in the browser’s serial port connection popup. Choose “Erase.” Uploading a Private Key Refresh the installer page in Chrome. Unplug the NSD, press the button on the device, and plug it back in to allow configuration. Click the “Config” toggle to open the configuration tool. Click “Connect” and select your device in the serial port selection window. Once connected, enter your private key into the text area below the connect button and click “Save to Device”. Private keys must currently be input as a hex string. Your device is now ready for use. Using the NSD Install the Horse Chrome extension from: https://chrome.google.com/webstore/detail/horse/ogdjeglchjlenflecdcoonkngmmipcoe Connect the NSD to your computer via USB and visit a Nostr web app such as https://iris.to/, https://coracle.social/, or https://snort.social/. Log in to the web app, and the Horse extension will automatically communicate with your NSD over Web Serial to log you in and sign your interactions.
T-Beam Supreme U-blox MAX-M10S-00B SX1262 915MHz
MCU ESP32-S3 (WiFi & Bluetooth 5LE) LoRa Transceiver Semtech SX1262 (improved performance) Frequency options 433 MHz 868 MHz 915 MHz Navigation Module NEO-M10S - GNSS receiver (supports GPS, GLONASS, Galileo, BeiDou) (better GPS sensitivity) Quectel L76K - (supports GPS, Beidou, GLONASS) (lower price) Connectors USB-C Antenna: U.FL antenna connector Features Includes T-Beam S3-Core Module SoftRF preinstalled (flashing to Meshtastic required) Power, Boot and Reset switches 1.3" OLED included BME280 Air pressure sensor QMI8658 IMU QMC6310 Magnetometer PCF8563 RTC Micro-SD reader (not implemented in Meshtastic)
LILYGO® TTGO LoRa32 V2.1_1.6 Version 433/868/915Mhz
ESP32 LoRa OLED 0.96 Inch SD Card Bluetooth WIFI Wireless Module ESP-32 SMA LoRa32 Specifications MCU ESP32 Flash 4MB PSRAM 8MB Wireless Connectivity Wi-Fi 802.11 Bluetooth V4.2 + Bluetooth LE Programming Platform Arduino-ide、Micropython Onboard Functions TF Card Slot USB or 3.7V Lipo Battery Power Supply Battery Switch Onboard Button Reset + Boot Screen Specifications Type OLED Resolution 128 x 64 Drive SSD1306 Size 0.96-inch Diagonal Interface I2C I2C Interface SDA--IO21 SCL--IO22 Text Color White Background Color Blue Low Power LoRa Transceiver LoRa Module SX1276 SX1278 Frequency Bands 868/915/923MHz 433MHz High-efficiency PA +14dBm +14dBm Low RX Current 9.9mA 9.9mA
LILYGO® TTGO Meshtastic T-Echo LoRa SX1262 Wireless Module 433/868/915MHz NRF52840 1.54 E-Paper GPS RTC NFC BME280 for Arduino
LILYGO® TTGO Meshtastic T-Echo LoRa SX1262 Wireless Module 433/868/915MHz NRF52840 1.54 E-Paper GPS RTC NFC BME280 for Arduino Pick a different color of shell for your T-Echo：T-Echo shell Specification MCU NRF52840 FLASH 2MB RAM 2MB Bus Interfaces UART, SPI, TWI, PDM, 12S, QSPI Wireless Connectivity Bluetooth 5, Thread, Bluetooth Mesh, ANT, 802.15.4, Zigbee With/Without BME280 temperature pressure sensor SX1262 LoRa Transceiver Long Range, Low Power Global frequency coverage 433, 868, 915Mhz Enclosure material ABS Version Normal version / BME280 version Battry Capacity 850mAh 1.54-inch SPI E-Paper Display Grey level 2 Resolution 200x200 Full refresh time 2S L76K Multi-System Positioning GNSS module Support System GPS, GLONASS, BeiDou, QZSS Support Function LNA, SAW Filter, AGNSS, 1PPS Improved receiving and anti-interference attributes LILYGO® TTGO Meshtastic T-Echo Introduce： LILYGO®TTGO T-Echo is a version evolved from LILYGO T-BEAM. At the beginning of the design, more consideration was to adapting to Meshtastic. so Bluetooth and low-power consumption were considered when designing, and NRF52840 Advanced Bluetooth 5 was selected thread and Zigbee multiprotocol SoC. The LORA function continues T-BEAM's LILYGO SX1262 version functional module. T-SX1262 wireless transceiver module, using Semtech SX1262 LORA RF transceiver chip design, working in the 868/915MHz ISM frequency band, integrated high stability TCXO 32MHz crystal oscillator, half-duplex transceiver module, power up to +22dBm, receiving sensitivity -139dBm. Automatic transceiver Switching, internal transmission, and reception channel isolation, advanced LORA spread spectrum communication technology, strong anti-interference, and privacy can realize long-distance wireless data Battery capacity: 850mAh Technology Support [Github] If you need technical support please check the link to find more details. Basic Example: https://github.com/Xinyuan-LilyGO/LilyGO-T-Echo Meshtastic: https://github.com/meshtastic/Meshtastic-device/releases
Coldsats Steel Seed Plate Backup
A high-quality 316 marine-grade steel seed phrase backup plate from coldsats. A compact design. Stamp your 24-word seed phrase on just a 40 x 95 mm plate. Sturdy 2mm thick with words 1 to 12 etched on one side, and 13 – 24 on the reverse. Immortalise your bitcoin. Complexity is the enemy of security but simplicity is our ally. Secure your stack.
The Bitaxe Supra
The Bitaxe Supra (1368) is the ideal solo miner, championing decentralization through its open-source design. Delivering up to 625+ GH/s with the powerful BM1368 ASIC and exceptional energy efficiency (17.5J/TH), it’s perfect for serious enthusiasts. Advanced cooling options (Basic, Noctua, Ice Cooler Tower, Noctua Cooler Tower) ensure optimal performance. Featuring seamless WiFi connectivity for easy pool integration and unparalleled customization, the Bitaxe Supra supports innovation and sustainability in Bitcoin mining. Join the decentralized mining revolution with Bitaxe Supra.