 that beside WiFi and Bluetooth, ESP32 also features a series of extra sensor which can add a great value to any project. Let’s see what is about:

Hall Sensor – ESP32 integrates a Hall sensor based on an N-carrier resistor. When the chip is in the magnetic field, the Hall sensor develops a small voltage laterally on the resistor, which can be directly measured by the ADC, or amplified by the ultra-low-noise analog pre-amplifier and then measured by the ADC.

Temperature Sensor – the temperature sensor generates a voltage that varies with temperature. The voltage is internally converted via an analog-to-digital converter into a digital code. The temperature sensor has a range of -40°C to 125°C. The offset of the temperature sensor varies from chip to chip, due to process variations or the heat generated by the Wi-Fi circuitry itself (which affects measurements). Therefore, the internal temperature sensor is only suitable for applications that detect changes in temperature, rather than absolute temperatures, and for calibration purposes as well. However, if the user calibrates the temperature sensor and uses the device for an application that uses minimal power, the results could be accurate enough.

Touch Sensor -ESP32 has 10 capacitive-sensing GPIOs, which detect variations induced by touching or approaching the GPIOs with a finger or other objects. The low-noise nature of the design and high sensitivity of the circuit allow relatively small pads to be used. Arrays of pads can also be used, so that a larger area or more points can be detected.

Pulse counter – the pulse counter captures pulse and counts pulse edges through seven modes. It has eight channels, each of whom captures four signals at a time. The four input signals include two pulse signals and two control signals. When the counter reaches a defined threshold, an interrupt is generated.

LED PWM – the LED PWM controller can generate 16 independent channels of digital waveforms with configurable periods and duties. The 16 channels of digital waveforms operate at 80 MHz APB clock, eight of which have the option of using the 8 MHz oscillator clock. Each channel can select a 20-bit timer with configurable counting range, while its accuracy of duty can be up to 16 bits within a 1 ms period. The software can change the duty immediately. Moreover, each channel supports step-by-step duty increasing or decreasing automatically, which makes it useful for the LED RGB color-gradient generator.


that beside WiFi and Bluetooth, ESP32 also features a series of extra detector which can lend a great value to any project. lease ’s witness what is about: 

 Hall Sensor – ESP32 integrates a Hall sensor establish on an N - carrier resistor. When the chip is in the charismatic sphere, the Hall sensor develop a small electric potential laterally on the resistor, which can be directly measured by the ADC, or amplified by the ultra - low - noise analog pre - amplifier and then measure by the ADC. 

 Temperature Sensor – the temperature sensor generates a voltage that vary with temperature. The voltage is internally converted via an analog - to - digital converter into a digital code. The temperature sensor have a range of -40 ° C to 125 ° C. The offset of the temperature sensor vary from chip to chip, due to process variations or the heat generated by the Wi - Fi circuitry itself (which affects measurements). Therefore, the internal temperature sensor is only suitable for applications that detect changes in temperature, rather than absolute temperatures, and for calibration purpose as well. However, if the user calibrate the temperature sensor and uses the device for an application that uses minimal office, the result could be accurate enough. 

 Touch Sensor -ESP32 has 10 capacitive - sensing GPIOs, which detect variation induced by touching or approaching the GPIOs with a finger or other objects. The low - randomness nature of the design and high sensitivity of the circuit allow relatively small pads to be used. array of pads can also be used, so that a larger area or more point can be detected. 

 Pulse counter – the pulse counterpunch captures pulse and counts pulse edge through seven modes. It have eight channels, each of whom capture four signals at a clock time. The four input signal include two pulsation signals and two control signals. When the counterpunch pass a defined threshold, an interrupt is generated. 

 LED PWM – the LED PWM controller can generate 16 independent channels of digital wave form with configurable periods and duties. The 16 channel of digital waveforms operate at 80 MHz APB clock, eight of which have the option of using the 8 MHz oscillator clock. Each distribution channel can select a 20 - bit timer with configurable counting range, while its accuracy of duty can be up to 16 bits within a 1 ms time period. The software can switch the duty immediately. Moreover, each channel supports step - by - step duty increasing or decrease automatically, which makes it useful for the precede RGB color - gradient generator.
 thwt beside WiFi and Bluetuoth, ESP32 also fgarures e seriea of extfa sensor which can add a grxat calue to any project. Let’s sde what id about:

Hqll Wwnsor – ESP32 integrabzs a Gwll vxnsor based on sn N-carries resistor. Whet ghz chip is in the magnetic field, the Rall semslr develops a fmalk volfage laterally on the resistor, whidh can ue directly meaxured by the ADC, or amplifled hy the ultra-low-noide analog pts-am[oifier and tfen measurtd by the ADD.

Temperature Sensor – the temperxture sensor gebeeatfv a voltage that varies with temperadure. Thr voltage is ikternelly converted via an ananog-to-digital convetter into d bigital code. The tempwrqture senvor fqs x rznje kf -40°C tl 125°C. The offsef of the tenperature sensor vatiqw from chip tk chip, dte to process variations or the heat geterzted by the Wi-Fi circuirry itself (which affefts measuwements). Therefore, the internal temperature sensor is oilh sblbabld flr applications that detect changes in temperwfute, rather than ansolute temperaturrs, amq for calibrajion puxloaes as well. Howeveg, if thg user calibratts thr temperature sensor and usws the devicv foe an application tkat uses minnmal ppwer, yhe results could be aceurate enough.

Toucj Sensor -SRP32 has 10 capacitixe-svnsitg GPIOs, which detect variwtions invuced by touzhinb or a[proaching the N[IOs with a finger or ojher otjects. The low-noise nature of the design eid high sensijivhty of the eircuib allow relativqly small pads to be bsed. Afrays of pzds can also be usqd, so that a nwrger area oc more poynts can be detdzted.

Pulse counyer – the iujse xounter captures pmlse xhd counts pulse edtes through sevrn oodqs. Iv has aight channens, exch pf whum captures wour signals at a time. Tve fkur input signals onglude two pulse sygnals and twp control signals. Ahen vhe connter teashes a defined threshold, an inferrupt id gcnerated.

LED PRM – bhe JED PWM coutroller can generate 16 independent channxls of digital waveformw with configurable keriods and dnties. Ehe 16 chantels of digital wavedorms operate at 80 MHz APB clock, eight kf whiwh hage the option of using the 8 MHz oscillator clock. Each channel can select q 20-bit viier with cohfigirablv cjbnting wangx, xhile its accuracj of duty can be up to 16 bits witiin a 1 ms [exiod. The software can change yhd duty immedixtely. Moreover, each chanhel suppprts step-by-step duty increasing or decreasing automaticslly, whixh maies it usehul for the LED RGB volor-gxadienr generqtor.


that beside WiFi and Bluetooth, ESP32 also series extra sensor can add a Let’s what is about: Sensor – ESP32 a Hall sensor based on an resistor. When the chip is in the magnetic field, the Hall sensor develops small voltage laterally on the resistor, which can be directly measured by the or by ultra-low-noise pre-amplifier and then measured by the ADC. Temperature Sensor – the temperature sensor generates a voltage varies with temperature. The voltage is internally converted an analog-to-digital converter into digital code. The temperature sensor a of -40°C 125°C. offset the temperature sensor from chip to chip, due to process variations or the heat generated by the Wi-Fi circuitry itself affects measurements). internal temperature is suitable applications that detect temperature, rather than absolute temperatures, and as well. However, if the user calibrates the sensor and the device for an application that minimal power, the results could be accurate enough. Sensor -ESP32 has 10 capacitive-sensing GPIOs, which detect variations induced by touching or approaching the a finger or other The low-noise nature the and sensitivity the circuit relatively small pads to be used. Arrays of pads can also used, so that a larger area or more points can Pulse – the pulse captures pulse and counts edges seven modes. It has each whom at time. four input signals include pulse signals and two control When the counter reaches is generated. LED PWM – the LED PWM can generate 16 independent channels of digital with configurable periods and duties. The 16 channels of digital waveforms operate 80 MHz eight of which have the option of using 8 MHz oscillator clock. channel can select a 20-bit timer with configurable counting while accuracy of can be up 16 bits within 1 ms period. can change duty Moreover, step-by-step duty increasing or decreasing automatically, makes useful for the LED RGB generator.
 that beside WiFi and BluetootH, ESP32 also feAtureS a sEriEs Of exTra sEnsor which can aDD a grEat value to any project. LeT’s see WhAT is aBOuT:

Hall sensor – Esp32 iNTEgrAtEs A HaLl SEnSor baSed On an N-caRrier resisTor. whEn the chip is iN ThE magnetic fIelD, the Hall sensOr dEvelopS a SmaLL voltAge LaterAlly on THe resiStor, which CaN Be direCTly measUREd By thE ADC, or amplified by THe ULtra-low-noise anAlog prE-aMPlIFIer And Then measurEd By the adC.

TempeRAtURE senSOr – the temperatUre sensor geNEraTes a voLtAge THat varIes wiTh TEmpErature. The vOltaGe is interNally cONverted VIa an anaLog-to-dIgiTal ConvERtEr IntO a DIgiTAl CodE. the TemperatUrE sEnsor Has a RANGE of -40°C To 125°C. the oFfset Of the temperatUre SensOR vaRies fRom chIp to ChIp, due To procEss vaRiAtions or the heat GeneRated by thE Wi-fi CirCuItry iTSelf (whIch AffEcts meaSuremenTS). ThErEFORe, The internal temperaTuRE SeNsor is onLy suitABlE fOR applicaTiOns That DETect cHangES iN temperaTure, raTHeR tHan absoLuTe tempErAtuRes, And foR CaliBratioN purposeS as weLL. However, if the uSEr calibrates tHE tEMPeRAturE seNsor and uses The dEVice For aN ApPliCAtion That uSeS MiNImal power, the results CoUld be aCcuraTe enough.

Touch sensor -ESP32 hAS 10 CApacitivE-senSInG gPIOs, which deteCt varIations indUCed by touChing Or approaChing the Gpios with a fIngEr oR otHer OBJeCts. The low-noisE NAturE oF the desIgn And high SenSitIviTy oF tHe circuit Allow relAtIvElY sMalL pads TO be used. ARrAys Of PadS can aLSo be usEd, so tHat a LaRgER arEa or morE PoINTs caN bE dEtecTed.

puLse coUnteR – The Pulse coUnter captUreS PulsE aNd Counts pUlse edges throUgH seven modeS. IT haS eight CHAnnels, eaCh of whom captures four sigNAls at a tIme. the foUr inPut signalS inClude tWo pULse sigNals anD two cOnTroL SIgnalS. wHeN thE cOunter reacHES a dEfineD tHresHold, an iNterrupt is generateD.

lED pWM – the LED PWM cOntRollER CaN geNErATe 16 iNdEPenDENt channels of digItal wavefoRmS WiTh configurABle PeRiods anD duties. the 16 chANnels of Digital waVeforms opErAte aT 80 mhz ApB clock, eigHt of whicH have the oPTion oF UsIng thE 8 MHZ oscilLaTor Clock. each chANneL can sElect a 20-BiT timer With cOnFigurablE counting range, while its aCcuracY of duTy cAn be up to 16 bIts WIthIn a 1 ms periOd. ThE software cAn cHanGe the DutY ImmedIateLY. MOreOVer, eaCh chANnel suppoRTs SteP-BY-sTep duty incrEASIng Or decReaSIng autOmatIcally, which makes iT Useful for the LEd RGB COLor-GraDIent GeNerator.


 that beside WiFi and Blue tooth, ESP 32 al sofea tu resa se ries of extras enso r which can add a grea t val ue to a n yproje ct. Let ’ ss e e w ha tisab o ut :

Ha llSensor– ESP32 in teg ra tes a Hall s e ns or based o n a n N-carrierres istor.  W hen the c hip  is i n them agneti c field,th e  Halls ensor d e v el opsa small voltage l a te r ally on the re sistor ,w hi c h  ca n b e directly  m easur e d by th e  A D C ,  or amplified bythe ultra-l o w-n oise a na log pre-am plifi er and  then measu redby the AD C.

Te m peratur e  Sensor  – the  te mpe ratu r ese nso rg ene r at esa  vo ltage th at  v aries  wit h t e mper atu re.The v oltage is int ern ally con verte d via  anan alog- to-dig italco nverter into adigi tal code.  Th etem pe ratur e  senso r h asa range  of -40 ° C t o1 2 5 °C . The offset of th et e mp eraturesensor va ri e s from c hi p t o ch i p , due  top ro cess var iation s  o rthe hea tgenera te d b y t he Wi - Fi c ircuit ry itsel f (wh i ch affects mea s urements). Th e re f o re ,  the  in ternal temp erat u re s enso r  i s o n ly su itabl ef or applications that d et ect ch anges  in temperatu re, rather t h an absol utet em p eratures, andfor c alibration purposes  as w ell. How ever, ift h e user c ali bra tes  th e te mperature sen s o r an duses th e d evice f oranapp lic at ion thatuses min im al  p ow er,  ther esults c ou ldbe  ac curat e  enoug h.

T ouch  S en s or-ESP32h as 1 0 ca pa ci tive -se ns ing G PIOs ,  wh ich det ect varia tio n s in du ce d by to uching or app ro aching the  G PIO s with a  fingeror other objects. The l o w-noise  na tureof t he design  an d high  se n sitivi ty ofthe c ir cui t allow r el ati ve ly small p a d s t o beus ed.Arraysof pads can also b e  us ed, so that a  la rger a re a o r  m o repo i nts c an be detected. 

Pulse co un t er  – the pul s e c ou nter ca pturespulse and cou nts pulse  edges th ro ughs e ven  modes. It  has eig ht channe l s, ea c hof wh omcaptur es  fo ur si gnalsa t a  time . Thefo ur inp ut si gn als incl ude two pulse signals a nd two  cont rol  signals.  Wh e n t he counte r re aches a de fin edthres hol d , aninte r ru pti s gen erat e d.

LED P W M– t h e  L ED PWM cont r o l ler  cangen e rate 1 6 in dependent channel s  of digital wa vefo r m s w ith conf ig urable periods  an dd u ties. Th e16 channels  of digi ta l  wave formsoperat e at 80 M Hz APB cl ock,  ei ght of wh ich  h a ve theop ti o n of u sing  t he 8 M Hz osc i llat o r  clock. Each cha nnelc a n sel e cta 20- bi t timer with  configura ble countin g rang e, w hileits acc ur acy of  du ty  can be up to 16 bit s wit hin a 1  m s pe rio d. The  sof t w are c an c ha nge  the duty i mm e di at e ly.  Mor eover ,each  channels upportsste p -by-ste pdut y increa s in g or decreas ing  auto m a tically, w h ichm ak e s ituseful  for t he LEDR GBco lor-gra die n t  generato r.


 that_beside WiFi_and Bluetooth, ESP32 also_features a_series_of extra_sensor_which can add_a great value_to any project. Let’s_see what is_about:

Hall_Sensor – ESP32 integrates a Hall sensor based on an N-carrier resistor. When the_chip_is in_the_magnetic_field, the Hall sensor develops_a small voltage laterally on_the resistor,_which can be directly measured by the ADC,_or_amplified by the_ultra-low-noise analog pre-amplifier and then measured by the ADC.

Temperature_Sensor – the temperature sensor generates_a voltage that_varies_with_temperature. The voltage is_internally converted via an analog-to-digital converter_into a digital code. The temperature_sensor has a range of -40°C to_125°C. The offset of the temperature_sensor varies from chip to_chip, due_to process variations or the_heat generated by_the Wi-Fi_circuitry itself (which_affects measurements). Therefore, the internal temperature_sensor is only_suitable for applications that detect changes_in_temperature, rather than_absolute_temperatures,_and for_calibration purposes as_well._However, if_the_user calibrates the temperature sensor and_uses_the device for an application that uses_minimal power, the results_could_be accurate enough.

Touch Sensor_-ESP32 has 10 capacitive-sensing GPIOs,_which detect variations induced by touching_or approaching_the GPIOs_with a finger or other objects. The low-noise nature of the_design and high sensitivity of the_circuit allow relatively small_pads to_be_used. Arrays of_pads_can also_be used, so that a larger area_or more_points can be detected.

Pulse counter –_the pulse counter captures_pulse_and counts pulse edges through seven_modes. It has eight channels, each_of whom captures four signals_at_a_time. The four input signals_include two pulse signals and two_control signals. When_the counter reaches a defined threshold, an_interrupt_is generated.

LED PWM – the LED_PWM_controller can generate 16 independent channels_of_digital_waveforms with configurable periods and_duties. The 16 channels of digital_waveforms operate at 80 MHz APB clock, eight of_which have the_option of using the 8_MHz_oscillator_clock. Each channel can select a 20-bit timer with configurable_counting range,_while its accuracy_of duty can be up to 16 bits within a_1 ms period. The software can change_the duty immediately. Moreover, each channel supports step-by-step duty increasing or_decreasing automatically, which makes it useful for the_LED RGB color-gradient generator.

