{"product_id":"at-09-hm-10-ble-4-0-bluetooth-module-cc2541-uart-3-6-6v-arduino-ios-android","title":"AT-09 \/ HM-10 BLE 4.0 Bluetooth Module — CC2541, UART, 3.6–6V, Arduino \/ iOS \/ Android","description":"\u003ch2\u003eAT-09 \/ HM-10 BLE 4.0 Bluetooth Module — CC2541, UART, Arduino \/ iOS \/ Android\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eAT-09 \/ HM-10\u003c\/strong\u003e is a compact Bluetooth Low Energy (BLE 4.0) module built on the Texas Instruments \u003cstrong\u003eCC2540\/CC2541\u003c\/strong\u003e SoC. It provides a transparent UART serial bridge between a microcontroller and BLE-capable smartphones (iOS and Android), making it the go-to module for wireless Arduino projects, IoT sensor data transmission, and BLE peripheral device development.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule\u003c\/td\u003e\n\u003ctd\u003eAT-09 \/ HM-10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth IC\u003c\/td\u003e\n\u003ctd\u003eTI CC2540 \/ CC2541\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBluetooth Version\u003c\/td\u003e\n\u003ctd\u003eBLE 4.0 (Bluetooth Low Energy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eUART (TX, RX, VCC, GND)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.6V – 6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003eUp to 100m (open space)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eiOS Compatible\u003c\/td\u003e\n\u003ctd\u003eYes (CoreBluetooth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAndroid Compatible\u003c\/td\u003e\n\u003ctd\u003eYes (BLE API)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eAT commands via UART\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefault Baud Rate\u003c\/td\u003e\n\u003ctd\u003e9600 bps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eBLE vs Classic Bluetooth — Key Differences\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eBLE 4.0 (AT-09\/HM-10)\u003c\/th\u003e\n\u003cth\u003eClassic Bluetooth (HC-05\/HC-06)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eiOS Support\u003c\/td\u003e\n\u003ctd\u003e✅ Yes (no MFi required)\u003c\/td\u003e\n\u003ctd\u003e❌ No\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eVery low (μA in sleep)\u003c\/td\u003e\n\u003ctd\u003eHigher (mA range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 1Mbps\u003c\/td\u003e\n\u003ctd\u003eUp to 3Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePairing\u003c\/td\u003e\n\u003ctd\u003eNo PIN required\u003c\/td\u003e\n\u003ctd\u003ePIN required (default 1234)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003eIoT, sensors, smartphone apps\u003c\/td\u003e\n\u003ctd\u003eAudio, high-throughput data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose AT-09 \/ HM-10?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eiOS compatible\u003c\/strong\u003e — connects to iPhone\/iPad apps without MFi certification\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eUltra-low power\u003c\/strong\u003e — μA sleep current for battery-powered IoT nodes\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAT command configuration\u003c\/strong\u003e — change name, baud rate, PIN via serial terminal\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eTransparent UART bridge\u003c\/strong\u003e — no BLE stack knowledge required\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e3.6–6V supply\u003c\/strong\u003e — compatible with 3.3V and 5V Arduino boards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eArduino BLE wireless control from iPhone\/Android app\u003c\/li\u003e\n\u003cli\u003eWireless sensor data transmission to smartphone\u003c\/li\u003e\n\u003cli\u003eBLE UART transparent serial bridge\u003c\/li\u003e\n\u003cli\u003eIoT device smartphone configuration interface\u003c\/li\u003e\n\u003cli\u003eBLE beacon and proximity detection\u003c\/li\u003e\n\u003cli\u003eWearable device wireless data link\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × AT-09 \/ HM-10 BLE 4.0 Bluetooth Module\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"CC2541 6PIN","offer_id":46991431958763,"sku":"14:350852#CC2541 6PIN","price":7.76,"currency_code":"USD","in_stock":true},{"title":"CC2541","offer_id":46991431991531,"sku":"14:10#CC2541","price":7.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/at-09-hm-10-ble-4-0-bluetooth-module-arduino-android-ios.webp?v=1761882724","url":"https:\/\/keszoox.com\/products\/at-09-hm-10-ble-4-0-bluetooth-module-cc2541-uart-3-6-6v-arduino-ios-android","provider":"Keszoox","version":"1.0","type":"link"}