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  • Micromu Differential Audio to Single Ended Output BLE 4.1 Btm815 Onboard Antenna CSR8615 BLE Audio Module DIY
  • Micromu Differential Audio to Single Ended Output BLE 4.1 Btm815 Onboard Antenna CSR8615 BLE Audio Module DIY
  • Micromu Differential Audio to Single Ended Output BLE 4.1 Btm815 Onboard Antenna CSR8615 BLE Audio Module DIY
  • Micromu Differential Audio to Single Ended Output BLE 4.1 Btm815 Onboard Antenna CSR8615 BLE Audio Module DIY
  • Micromu Differential Audio to Single Ended Output BLE 4.1 Btm815 Onboard Antenna CSR8615 BLE Audio Module DIY
  • Micromu Differential Audio to Single Ended Output BLE 4.1 Btm815 Onboard Antenna CSR8615 BLE Audio Module DIY

Micromu Differential Audio to Single Ended Output BLE 4.1 Btm815 Onboard Antenna CSR8615 BLE Audio Module DIY

US$4.00 10 Pieces (MOQ)
Port:
Shenzhen, China
Payment Terms:
T/T, Paypal

Last Login Date:

Jun 25, 2025

Business Type:

Manufacturer/Factory

Main Products:

Fresnel Lens, Card Magnifier, LED Light, Wireless Products, Screen Magnifier

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Product Description

Company Info

Basic Info.

Model NO.
Btm815
Usage
Telephone, Mobile phone
Type
Wireless
Support Network
Bluetooth
Certification
CE, RoHS
Condition
New
Trademark
Micromu
Origin
China

Product Description

Product Description
1
Module feet more intensive, need a better welding machine foundation. Module before shipment test, on the tin will not return !
2
CSR Ble module audio for the differential output, you need to increase the op amp or amp circuit into single-ended output (left channel, right channel, audio common).
3
Only provide module application data, that is, the Ble module specification and the Ble module reference schematic
4
BTM05E, BTM870 development more difficult, no standard procedures, other modules (BTM805 / 815/830/845, etc.) for the default program. Refer to the module specification for the default program operation.
Note
Ble module feet more intensive, the need for supporting the external circuit to work properly, so the need for a certain circuit and welding technology!

Software Description:

Ble Name: BT Speaker
The key description is as follows:
PIN30 (MFB): high power on, low shutdown (module power, PIN30 to be low, power on the need to do the delay circuit, can not directly pull up, boot automatically into the paired mode)
PIN1 (PIO6): amplifier control enable pin (with audio output, the output high level 1.8V)
PIN2 (PIO8): Short press to play / pause / answer / hang up, press and hold for 1 second
PIN3 (PIO1): short press on a song, long press the volume minus
PIN4 (PIO0): short press a song, long press the volume plus

Special Features:

PIN2: Press and hold for 3 seconds to force the pairing mode, press and hold for 6 seconds to clear the pairing list
PIN2 + PIN3: long press 1 second to enter search TWS mode (CSRA64110 / CSRA64210 / CSRA64215 Ble series only)
PIN2 + PIN4: Press and hold for 1 second to enter the searched TWS mode (CSRA64110 / CSRA64210 / CSRA64215 Ble series only)
PIN3 + PIN4: long press 1 second off TWS (CSRA64110 / CSRA64210 / CSRA64215 Ble series only)
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