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The product is intended for specialists and requires qualified and authorized personnel. The product does not include assembly/use instructions . Putting the product into operation by unqualified persons leads to the loss of the warranty according to the Terms and Conditions on the site.
The specified technical parameters (current, power, etc.) represent maximum allowable values under ideal operating conditions. For safe use and optimal lifespan, it is recommended to operate the product continuously at no more than 50% of the specified maximum values.
Bluetooth 4.2 BLE audio module, stereo, MH-M18
Bluetooth 4.2 BLE audio module for low-power stereo streaming, ideal for DIY projects and portable audio equipment. Offers lossless playback and decoding of WAV WMA FLAC APE MP3, dual channel LR output for direct connection to an amplifier, range up to 20 m in open space, support for volume buttons and Mute function for quick control.
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Bluetooth 4.2 audio module, M18.
It is a low power consumption module, supports the latest Bluetooth 4.2, two stereo channels for lossless playback. In open spaces, the distance can reach up to 20 meters.
Power supply voltage: 3.7 - 4.2V (via lithium battery) and 5V
Supported Bluetooth protocols: HFPV1.7, A2DPV1.2, AVRCPV1.5, AVCTPV1.2, AVDTPV1.2
Standby current: 5.5mA
Operating current: 20mA
Deep sleep current: 3uA
Button support: Yes
Volume adjustment and Mute: Yes
Functions:
| Pin | Function | Description |
| 1 | KEY | Button control terminal (4 button functions, additional resistors as shown in wiring diagram) |
| 2 | MUTE | Mute control terminal (outputs high level 3.3V when muting, outputs low level during playback) |
| 3 | VCC | Positive power supply 5V (lithium battery 3.7V power supply requires a short circuit diode) |
| 4 | GND | Power negative / audio signal ground |
| 5 | L | Left channel output |
| 6 | R | Right channel output |
Direct soldering of the GND wire (without connectors) over the shortest possible distance is recommended for good sound quality.
The module's antenna is sensitive to electromagnetic interference, which can cause problems with signal quality.
In MUTE mode, the module outputs a 3.3V logic level, and during playback 0V. To change this behavior depending on the available amplifier, see the following schematic for inversion.
Produs destinat utilizarii in proiecte electronice, automatizari, prototipare, educatie si cercetare.
Produsul trebuie utilizat numai conform specificatiilor tehnice mentionate in descriere si/sau in documentatia produsului.
Avertismente generale de siguranta:
Nu utilizati produsul la tensiuni, curenti sau temperaturi peste valorile specificate.
Montajul si conectarea trebuie realizate de persoane cu cunostinte tehnice minime in domeniul electric/electronic.
Evitati scurtcircuitele, inversarea polaritatii si conectarea gresita a alimentarii.
Nu lasati produsul alimentat nesupravegheat in timpul testelor.
Produsul nu este jucarie si nu este destinat copiilor.
Pentru modulele electronice, se recomanda utilizarea in carcase, panouri sau montaje protejate, dupa caz.
Identificare produs:
Denumirea produsului, codul/SKU-ul si caracteristicile tehnice sunt mentionate in pagina produsului si/sau pe eticheta ambalajului.
Producator / Importator / Distribuitor:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Website: www.sigmanortec.ro
Persoana responsabila in UE:
Sigmanortec S.R.L.
Calea Bucuresti nr. 9, Targu Jiu, Gorj, Romania
E-mail: [email protected]
Documentatie si siguranta:
Pentru informatii suplimentare, fise tehnice, declaratii de conformitate sau instructiuni, ne puteti contacta la [email protected].
Reviews (8) - Review moderation
Din pacate nu se pot anlatura zgomotele de decodare digitala care se suprapun peste componenta audio.... Am orhanizat traseele de masa an stea am pus cabluri ecranate... Ori ce am ancercat. Sunt 2 aanse : sau nu e bine decuplat ic ul la iesirea audio sau este un cip nereusit. an rest asi face treaba instantaneu. Nu recomand
https://www.soselectronic.ro/products/tracopower/tma-0505d-3567agclid=Cj0KCQiA962BBhCzARIsAIpWEL076YTSBm8pThEsfgIO_WUB56Oxx6LDUBqYmDiH5mLTDh0E17oMrukaArnPEALw_wcB Despre acest convertor este vorba a Eu am comandat pe celalalt bt. Cu mufa 3.5 jack si micro USB , funcsioneaza bine cu acumlator si cu 5 colt de la ancarcator telefon de la 220v la 5v. Numai la ancarcator din masina de la 12v la 5v are zgomot tare deci aici ar fi nevoie de acest DC/DC convertor a
functioneaza bine ,dar trebuie respectate decuplarile de pe bara de + si iesirile audio pe cablu ecranat. Max 5volt.
Chiar bune
Modulul funtioneaza destul de bine ,nu are zgomote insuportabile de fundal, sunetul este super ok.Tin sa precizez ca am alimentat dintr-o baterie externa de 5v. Conectarea fara probleme,nu se incalzeste. Din pacate nu am reusit cu butoanele controlul ,nu stiu care e toleranta rezistorilor pentru o buna functionare. Deci, la pretul pe care il are e numai bun.
