{"product_id":"aursinc-mmdvm-duplex-hotspot-module-dual-hat-v1-5-2-support-p25-dmr-ysf-nxdn-dmr-for-raspberry-pi-pi-zero-with-oled","title":"AURSINC MMDVM Duplex Hotspot Module V1.5.2 Support P25 DMR YSF NXDN DMR for Raspberry Pi, Pi Zero (with OLED)","description":"\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003e[Extensive Compatibility] \u003c\/strong\u003eSupports DMR, P-25, D-Star and System Fusion. HIGH PERFORMACE: 32-bit ARM processor, up to 10mW RF power, fully tested every piece. Compatible with the Raspberry Pi, including the Pi 1, 2\/2b, 3\/3b\/3b+, 4\/4b, Pi Zero, Pi Zero 2W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003e[Easy to Assemble]\u003c\/strong\u003e The firmware is pre-loaded and is easily upgraded via software. Onboard LEDs showing status (Tx, Rx, PTT, Mode). Pi-star control Mode selection: DUPLEX Mode\/SIMPLE Mode\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003e[Frequency Range]\u003c\/strong\u003e UHF 433-900MHz, VHF144-146MHz. (144-148, 219-225, 420-475 Main band, 842-950) It's best to work on the amateur band: 430-440 MHz. NOTE: TX=0, RX=0. To leave the screen on all the time In Pi-Star configuration, ensure you have \"OLED Type 3\" in the display type field at the top of the page, set Port to: modem\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003e[Setting]\u003c\/strong\u003e Modify the modem type (any model ending in GPIO can be supported). Radio\/Modem Type: STM32-DVM\/MMDVM_HS-Raspberry pi Hat(GPIO). In the Expert section, go to MMDVM host, and scroll down to the OLED section. Make sure LogoScreensaver is set to \"1\", this leaves the screen on all the time. Otherwise, it goes blank when idle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003e[Update New FW]\u003c\/strong\u003e (pi-star \/ expert \/ ssh access \/ user: pi-star pass: raspberry) You can directly run upgrade commands without the need to set jumpers (run in the Pi star terminal): sudo pistar-mmdvmhshatflash hs_dual_hat (if this command doesn't work, please try this command: mmdvm.club\/index.php\/wpsd .html)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AURSINC","offers":[{"title":"Default Title","offer_id":46201490178286,"sku":"YY-AFLW-2CQ0","price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/9125\/3742\/files\/1_6940268e-112a-4b5f-8aea-985ad1a676eb.jpg?v=1741083362","url":"https:\/\/www.aursinc.com\/products\/aursinc-mmdvm-duplex-hotspot-module-dual-hat-v1-5-2-support-p25-dmr-ysf-nxdn-dmr-for-raspberry-pi-pi-zero-with-oled","provider":"AURSINC","version":"1.0","type":"link"}