#第十届立创电赛#便携扬声器 - 立创电子设计大赛

主页 >

Arduino爱好者

赛事

第十届立创电子设计开源大赛

版本协议

Public Domain

视频

描述

<div class="document"> 注：* 为必填项 请在报名阶段填写 ↓ <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 1、项目功能介绍</h3> <hr class="horizontal-splitline normal-bold-2"> 这是一个基于 ESP32 的编写的便携式扬声器，通过数字麦克风获得音频数据，然后通过数字功放 HT513 从喇叭播放出去。 <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*2、项目属性</h3> <hr class="horizontal-splitline normal-bold-2"> 原创首次公开。 <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 3、开源协议</h3> <hr class="horizontal-splitline normal-bold-2"> GPL3.0开源协议 请在竞赛阶段填写 ↓ <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*4、硬件部分</h3> <hr class="horizontal-splitline normal-bold-2"> 使用 ESP32 S3 作为核心（但是并未使用ESP32 S3 特有的属性）。 <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*5、软件部分</h3> <hr class="horizontal-splitline normal-bold-2"> 通过 Arduino 基于 AudioTools 库完成。 1. 音频数据通过MSM261S4030H0来获得 2.使用国产的 HT513作为功放。这款芯片支持通过寄存器直接调整音量，使用起来非常方便。外部有一个旋转按钮，通过 ADC 来得到当前需要的音量。 完整代码如下： /** @file streams-i2s-i2s-2.ino @brief Copy audio from I2S to I2S: We use 2 different i2s ports! @author Phil Schatzmann @copyright GPLv3 */ #include #include "AudioTools.h" AudioInfo IN_info(16000, 1, 32); AudioInfo OUT_info(16000, 1, 32); I2SStream in; I2SStream out; VolumeStream vol(in); StreamCopy copier(out, vol); // copies sound into i2s //FormatConverterStream converter(in); // or use converter(out) //StreamCopy copier(out, converter); // copier(converter, sound); // HT513 音量 uint16_t Volume; // 最小音量 #define LOWESTVOLUME 1 #define TOLENCE 16 #define HT513_ADDR_L 0x6c /** @brief ht513写寄存器 @param addr 寄存器地址 @param val 要写的值 @retval None */ void HT513_WriteOneByte(uint8_t addr, uint8_t val) { Wire.beginTransmission(HT513_ADDR_L); Wire.write(addr); Wire.write(val); int ack = Wire.endTransmission(true); Serial.print("Ack "); Serial.println(ack, HEX); } /** @brief ht513读寄存器 @param addr 寄存器地址 @retval 读取到的寄存器值 */ uint8_t HT513_ReadOneByte(uint8_t addr) { uint8_t temp = 0; Wire.beginTransmission(HT513_ADDR_L); Wire.write(addr); Wire.endTransmission(false); uint8_t bytesReceived = 0; bytesReceived = Wire.requestFrom(HT513_ADDR_L, (uint8_t)1, true); if (bytesReceived == 1) { temp = Wire.read(); } else { Serial.println("Read Error "); } return temp; } // Arduino Setup void setup(void) { delay(5000); // HT513 SD Pin 需要设置为 High pinMode(8, OUTPUT); digitalWrite(8, HIGH); analogReadResolution(9); // Open Serial Serial.begin(115200); // change to Warning to improve the quality //AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info); Wire.begin(18, 17); int nDevices; byte error, address; Serial.println("Scanning..."); nDevices = 0; for ( address = 1; address Wire.beginTransmission(address); error = Wire.endTransmission(); if (error == 0) { Serial.print("I2C device found at address 0x"); if (address Serial.print("0"); } Serial.println(address, HEX); nDevices++; } else if (error == 4) { Serial.print("Unknow error at address 0x"); if (address Serial.print("0"); } Serial.println(address, HEX); } } if (nDevices == 0) { Serial.println("No I2C devices found\n"); } else { Serial.println("done\n"); } // 设置 SD 为LOW HT513_WriteOneByte(0x12, 0b11110000); // 设置数据格式为 I2S, 32Bits HT513_WriteOneByte(0x13, 0b00000000); // 读取音量设置 Volume = analogRead(3); uint8_t Vol=(Volume,0,511,0x07,0xff); HT513_WriteOneByte(0x16, Vol); HT513_WriteOneByte(0x15, Vol); Serial.println(Volume, HEX); // 调整声道 HT513_WriteOneByte(0x17, 0b10110000); Serial.println("++++++++++++++++"); // 设置 SD 为HIGH HT513_WriteOneByte(0x12, 0b11110100); uint8_t Value = HT513_ReadOneByte(0x12); Serial.println(Value, HEX); Value = HT513_ReadOneByte(0x13); Serial.println(Value, HEX); Value = HT513_ReadOneByte(0x16); Serial.println(Value, HEX); Value = HT513_ReadOneByte(0x17); Serial.println(Value, HEX); // Define Converter //converter.begin(IN_info, OUT_info); // start I2S in Serial.println("starting I2S..."); auto config_in = in.defaultConfig(RX_MODE); config_in.copyFrom(IN_info); config_in.i2s_format = I2S_STD_FORMAT; config_in.is_master = true; config_in.port_no = 1; config_in.pin_bck = 37; config_in.pin_ws = 38; config_in.pin_data = 36; // config_in.fixed_mclk = sample_rate * 256 // config_in.pin_mck = 2 in.begin(config_in); // start I2S out auto config_out = out.defaultConfig(TX_MODE); config_out.copyFrom(OUT_info); config_out.i2s_format = I2S_STD_FORMAT; config_out.is_master = true; config_out.port_no = 0; config_out.pin_bck = 15; config_out.pin_ws = 6; config_out.pin_data = 7; config_out.pin_mck = 16; out.begin(config_out); // set initial volume vol.begin(IN_info); // we need to provide the bits_per_sample and channels vol.setVolume(0.3); Serial.println("I2S started..."); } // Arduino loop - copy sound to out void loop() { copier.copy(); if (abs(analogRead(3) - Volume) > TOLENCE) { // 读取音量设置 Volume = analogRead(3); // 设置 SD 为LOW HT513_WriteOneByte(0x12, 0b11110000); uint8_t Vol=map(Volume,0,511,0x07,0xff); HT513_WriteOneByte(0x16, Vol); // 设置 SD 为HIGH HT513_WriteOneByte(0x12, 0b11110100); Serial.print(analogRead(3), HEX); Serial.print(" "); Serial.print(Volume, HEX); Serial.print(" "); Serial.println(Vol, HEX); } } <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*6、BOM清单</h3> <hr class="horizontal-splitline normal-bold-2"> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">*7、大赛LOGO验证</h3> <hr class="horizontal-splitline normal-bold-2"> <img src="//image.lceda.cn/pullimage/43Sk6SiHY6ZEFkiZm1nXFXKkcfrNVc4DwCHIMZ8J.jpeg" alt="" width="4000" height="3000"> <h3 class="paragraph text-align-type-left pap-line-1.3 pap-line-rule-auto pap-spacing-before-3pt pap-spacing-after-3pt" style="line-height: 1.8;">* 8、演示您的项目并录制成视频上传</h3> <hr class="horizontal-splitline normal-bold-2"> 视频要求：请横屏拍摄，分辨率不低于1280×720，格式Mp4/Mov，单个视频大小限100M内； 视频标题：立创电赛：{项目名称}-{视频模块名称}；如立创电赛：《自动驾驶》-团队介绍。 <a href="/posts/42551e8f2f2548cabc1c36626a42da94" target="_blank">前往查看更多详情＞</a> </div>

文档

Sheet_1

PCB_#第十届立创电赛#便携扬声器

BOM

ID	Name	Designator	Footprint	Quantity	Manufacturer Part	Manufacturer	Supplier	Supplier Part
1	5.1K	R2,R3	R1206	2	AECR1206F120KK9	ResistorToday	LCSC	C352156
2	1x3 pin header	U5	1X3 PIN HEADER 2.54MM	1	1x3 pin header
3	1uf	C1,C2	C1206	2	1206F104M500NT	Guangdong Fenghua Advanced Tech	LCSC	C313097
4	0.1uf	C3	C1206	1	CC1206JRNPOBBN270	YAGEO	LCSC	C326944
5	22uf	C4	C1206	1	CC1206JRNPOBBN270	YAGEO	LCSC	C326944
6	Header2.0*5	H1	HEADER2.0*5	1
7	3P PH2.54	POWER1	CONN-TH_3P-P2.50_3PIN	1	3P PH2.54		LCSC	C9900006188
8	10K	R1	R1206	1	AECR1206F120KK9	ResistorToday	LCSC	C352156
9	12K	R5	R1206	1	1206W4F3303T5E	UniOhm	LCSC	C17929
10	ESP32-S3-WROOM-1U-N4	U1	WIRELM-SMD_ESP32-S3-WROOM-1U	1	ESP32-S3-WROOM-1U-N4	ESPRESSIF 乐鑫	LCSC	C2980296
11	PWR	U2	LED1206-FD	1	YLED1206R	YONGYUTAI(永裕泰)	LCSC	C28310439
12	TLV1117LV33DCYR	U3	SOT-223_L6.7-W3.5-P2.30-BR	1	TLV1117LV33DCYR	TI	LCSC	C15578
13	TYPE-C 16PIN 2MD(073)	USB1	USB-C-SMD_TYPE-C-6PIN-2MD-073	1	TYPE-C 16PIN 2MD(073)	SHOU HAN(首韩)	LCSC	C2765186
14	HT513测试板	U4	HT513测试板	1
15	喇叭	H2	DIP-1X2P-2.00MM	1			LCSC	C49661
16	DMic	P1	HEADER1X6-2.54MM	1			LCSC	C40877