{"title":"Audio Amplifier Module","description":"","products":[{"product_id":"pcf8591-module-analog-to-digital-digital-analog-converter-module-with-f-f-jumper-wire","title":"PCF8591 Module Analog to Digital \/ Digital-Analog Converter Module with F-F Jumper Wire","description":"\u003cp\u003e\u003cspan\u003eThis is a breakout board\/Prototype Board for PCF8591 IC. The PCF8591 Module Analog to Digital \/ Digital-Analog Converter Module with F-F Jumper Wire is a single-chip, single‑supply low‑power 8‑bit CMOS data acquisition device with four analog inputs, one analog output, and a serial I²C‑bus interface. Three address pins A0, A1, and A2 are used for programming the hardware address, allowing the use of up to eight devices connected to the I²C‑bus without additional hardware. Address, control, and data to and from the device are transferred serially via the two-line bidirectional I²C‑bus. The functions of the device include analog input multiplexing, on-chip track and hold function, 8-bit analog‑to‑digital conversion, and an 8‑bit digital‑to‑analog conversion. The maximum conversion rate is given by the maximum speed of the I²C-bus.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch5\u003e\u003cstrong\u003ePCF8591 IC Features\u003c\/strong\u003e\u003c\/h5\u003e\n\u003col\u003e\n\u003cli\u003eSingle power supply\u003c\/li\u003e\n\u003cli\u003eA PCF8591 operating voltage range of 2.5V-6V\u003c\/li\u003e\n\u003cli\u003eLow standby current\u003c\/li\u003e\n\u003cli\u003eVia I2C bus serial input\/output\u003c\/li\u003e\n\u003cli\u003ePCF8591 by 3 hardware address pins addressing\u003c\/li\u003e\n\u003cli\u003ePCF8591 I2C bus speed sampling rate decided\u003c\/li\u003e\n\u003cli\u003e4 analog inputs programmable single-ended or differential input\u003c\/li\u003e\n\u003cli\u003eAutomatic incremental channel selection\u003c\/li\u003e\n\u003cli\u003ePCF8591 analog voltage range from VSS to VDD\u003c\/li\u003e\n\u003cli\u003ePCF8591 built-in track-and-hold circuit\u003c\/li\u003e\n\u003cli\u003e8-bit successive approximation A \/ D converter\u003c\/li\u003e\n\u003cli\u003e1 analog output DAC gain\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch4\u003e\u003cstrong\u003eModule Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eThe module supports external voltage input of the 4-way acquisition (voltage input range of 0-5v)\u003c\/li\u003e\n\u003cli\u003eThe module integrated photoresistor by AD collection precise value of the ambient light intensity\u003c\/li\u003e\n\u003cli\u003eModule integrated thermistor by the precise value of the ambient temperature of the AD acquisition\u003c\/li\u003e\n\u003cli\u003eModule integrated 1 channel 0-5V voltage input acquisition (the blue potentiometer to adjust the input voltage)\u003c\/li\u003e\n\u003cli\u003eModules with power indicator (for the module power supply indicator lights)\u003c\/li\u003e\n\u003cli\u003eModules with DA output indicator, when the module DA output interface voltage reaches a certain value, will be lit panel the DA output indicator, the higher the voltage, the more obvious indicator brightness\u003c\/li\u003e\n\u003cli\u003eModule PCB size: 3.6cm x 2.3cm\u003c\/li\u003e\n\u003cli\u003eA standard double panel, thickness 1.6mm, nice layout, surrounded by a through-hole, aperture: 3mm, convenient fixed.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch4\u003eModule\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003einterface specification\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003ch5\u003e\u003cstrong\u003eThe Left\u003c\/strong\u003e\u003c\/h5\u003e\n\u003col\u003e\n\u003cli\u003eAOUT chip DA output interface\u003c\/li\u003e\n\u003cli\u003eAINO chip analog input interface 0\u003c\/li\u003e\n\u003cli\u003eAIN1 chip analog input interface 1\u003c\/li\u003e\n\u003cli\u003eAIN2 chip analog input interface 2\u003c\/li\u003e\n\u003cli\u003eAIN3 chip analog input interface 3\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch5\u003e\u003cstrong\u003eThe Right\u003c\/strong\u003e\u003c\/h5\u003e\n\u003col\u003e\n\u003cli\u003eSCL – IIC clock interface connected to microcontroller IO port\u003c\/li\u003e\n\u003cli\u003eSDA – IIC digital interface connected to microcontroller IO port\u003c\/li\u003e\n\u003cli\u003eGND – connected to ground\u003c\/li\u003e\n\u003cli\u003eVCC – connected to 3.3v-5v\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch5\u003e\u003cstrong\u003eFour red jumper-cap instruction\u003c\/strong\u003e\u003c\/h5\u003e\n\u003col\u003e\n\u003cli\u003eP4 – connected to P4 shorting cap, select thermistor access circuit\u003c\/li\u003e\n\u003cli\u003eP5 – connect P5 shorting cap, select photoresistor access circuit\u003c\/li\u003e\n\u003cli\u003eP6 – connected to P6 shorting cap, select 0-5V adjustable voltage access circuit\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch4\u003ePackage\u003cstrong\u003e Includes:\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e1 x PCF8591 Module Analog to Digital \/ Digital-Analog converter module with F-F Jumper Wire\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSpecification:\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage (VDC):\u003c\/td\u003e\n\u003ctd\u003e2.5 to 6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIC Chip\u003c\/td\u003e\n\u003ctd\u003ePCF8951\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Size ( L x W ) mm\u003c\/td\u003e\n\u003ctd\u003e35 x 23\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e0.03 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e8 × 7 × 3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Jaideep Robotics","offers":[{"title":"Default Title","offer_id":46750238441645,"sku":"28449","price":129.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/7638\/9293\/files\/download-2026-07-04T155228.971.avif?v=1783160577"},{"product_id":"mt8870-dtmf-audio-speech-decoding-telephone-module","title":"MT8870 DTMF Audio\/Speech Decoding Telephone Module","description":"\u003cp\u003eThis component is ideally suited to adding dual tone multi-frequency (DTMF) decoding to your project. This detection module interprets the incoming tone and produces a coded output that can be connected to all manner of microcontrollers.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDTMF is commonly found in touch tone devices such as a phone. The tone is a combination of two separate sine waves that produce a unique signal that can be transmitted or heard. When the module receives the signal it is able to decode it and produce a binary output that can be used in other devices. The module shows the state of the signal through onboard LEDs.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAs an idea, you can connect up a mobile phone via 3.5mm to 3.5mm cable to the module. Dialling into the phone from a second mobile and then using the keypad will produce the tones on the original phone. The tones in the call can then be interpreted by the module, allowing you to control all manner of projects. The pins are suited to standard sockets with a pin pitch of 2.54mm.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe MT8870 Tone Decoder is a kind of commonly used multi-frequency decode IC product developed by the MITEL company. It is a complete DTMF receiver. After it received the DTMF signal, it will divide the signal into high-frequency group and low-frequency group and send the signal to the digital decoder which can figure out the key value then send it to the outside Bus via four lines( Q1, Q2, Q3, Q4) as the binary form.\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cp\u003eOnboard voice input interface\u003c\/p\u003e\n\u003cp\u003eLow power consumption\u003c\/p\u003e\n\u003cp\u003eInternal gain setting amplifier\u003c\/p\u003e\n\u003cp\u003eOnboard LED, it is very convenient to check the output state.\u003c\/p\u003e\n\u003cp\u003eAdjustable guard time\u003c\/p\u003e\n\u003cp\u003e Central office quality\u003c\/p\u003e\n\u003cp\u003eOnboard 3.5mm input interface\u003c\/p\u003e\n\u003cp\u003e5 Channel interface\u003c\/p\u003e\n\u003cp\u003eOn-board MT8870 frequency decoder chip\u003c\/p\u003e\n\u003cp\u003ePower-down mode\u003c\/p\u003e\n\u003cp\u003eInhibit mode\u003c\/p\u003e\n\u003cp\u003eOnboard audio input interface\u003c\/p\u003e\n\u003cp\u003eOnboard LED lights for output state indicationComplete DTMF Receiver.\u003c\/p\u003e\n\u003cp\u003eDoes not require external circuits or wiring, it can be inserted directly into the UNO\/MEGA2560\/DUE board to use.\u003c\/p\u003e\n\u003cp\u003e12-Digital outputs decode mobile and fixed telephone keys (0-9, * #). Also, another 4 Digital output(ABCD) can use \"DTMF Dial\" for Software control.\u003c\/p\u003e\n\u003cp\u003ePackage Includes:\u003c\/p\u003e\n\u003cp\u003e1 x MT8870 DTMF Audio\/Speech Decoding Telephone Module \u003c\/p\u003e\n\u003cp\u003eSpecification:\u003c\/p\u003e\n\u003cp\u003eOperating Voltage (VDC): 5\u003c\/p\u003e\n\u003cp\u003eChip MT8870DS\u003c\/p\u003e\n\u003cp\u003ePower Consumption (mW) 500mW (MAX)\u003c\/p\u003e\n\u003cp\u003eOperating Temperature (°C): -40-+85 °C\u003c\/p\u003e\n\u003cp\u003eBoard Color Blue\u003c\/p\u003e\n\u003cp\u003eDimensions (L x W x H) mm 27 x 25 x 10\u003c\/p\u003e\n\u003cp\u003eWeight (g): 5g\u003c\/p\u003e\n\u003cp\u003eShipping Weight 0.02 kg\u003c\/p\u003e\n\u003cp\u003eShipping Dimensions 3 ×\u003c\/p\u003e\n\u003cp\u003e2 × 2 cm\u003c\/p\u003e","brand":"Jaideep Robotics","offers":[{"title":"Default Title","offer_id":46750323933357,"sku":"407537","price":79.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/7638\/9293\/files\/download_31.jpg?v=1783166635"}],"url":"https:\/\/jaideeprobotics.com\/collections\/audio-amplifier-module.oembed","provider":"Jaideep Robotics ","version":"1.0","type":"link"}