www.picaxe.com/products/axe171
AXE171 PICAXE-14 Audio Kit © Revolution Education Ltd 2015 v1.1
May be copied for educational use.
1
AXE171 PICAXE-14 Audio Kit
The AXE171 is a small PICAXE-14M2 project designed to connect to the SPE035 MP3 player module.
Both kits are provided within the PICAXE-14 Audio kit.
The SPE035 Serial MP3 player consists of a small MP3 player module mounted on a PCB with serial
connector, test switches and 8 ohm speaker. It provides a simple and low cost way to add MP3 tune
playback to any PICAXE project.
The MP3 audio files (music, speech etc.) are copied onto a microSD card (not included) which is then
inserted into the MP3 player. A simple 3 wire connection to the PICAXE project then allows playback
and control of the audio tunes.
AXE171 Features
：
1.
PICAXE-14M2 Microcontroller
2.
Two LED outputs and two spare outputs e.g. for Serial LCD or Servo
3.
Push switch and LDR light sensor
4.
MP3 player interface
SPE035 Features
：
1.
Supports MP3 files with all most common file sampling frequencies (kHz):
i.
8 / 11.025 / 12 / 16 / 22.05 / 24 / 32 / 44.1 / 48
2.
High quality playback on 8 ohm speaker (included) with 90dB dynamic range
3.
PCB pads for alternate stereo line out audio connection
4.
Supported file format: MP3 / WAV
5.
Supports 1GB to 32GB microSD card (FAT16 or FAT32)
6.
30 volume settings (1= mute, 30 = full volume)
7.
6 equalizer settings (0=Normal, 1=Pop, 2=Rock, 3=Jazz, 4=Classic, 5=Bass)
8.
TTL serial control playback mode, at 9600 baud rate (PICAXE serout at T9600_8)
9.
Power supply can be 3.3 to 5.2V DC
10.
On board switches for playback testing
www.picaxe.com/docs/axe171.pdf