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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
2 y" x6 g; o5 D: w/ |% F: F- #include <ESP8266HTTPClient.h>, Q& F8 i8 x1 f2 Q6 o
- #include <ESP8266WiFi.h>
& A6 K$ n% E9 C5 ? - #include <ESP8266WiFiMulti.h>
7 M/ _5 F3 P3 \' y - #include <ESP8266WebServer.h>8 b Y/ T2 V& j2 a3 S& m9 z
- #include <arduino.h># M% F+ u j% B3 ?9 `& p( N4 `
- ESP8266WiFiMulti WiFiMulti;
& u+ C" g0 a$ f5 a - ESP8266WebServer server(80);+ W) r4 \ S* j+ y6 P
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 X7 f2 z7 d p1 z
- ADC_MODE(ADC_VCC); m' r8 N6 y; f& i5 \9 L
- void setup() {
5 {. \5 m }8 b f0 ~5 ?0 K9 s7 q - Serial.begin(115200);7 D0 V8 p3 V7 g% C# k
- Serial.print("\r\n\n");, `! y$ j1 j- @, V
- pinMode(2,OUTPUT);( J$ g+ ?5 g; Z
- // WIFI
) ?. G: u1 F& s- b) a3 F7 W - WiFi.mode(WIFI_STA);
+ J. A$ r/ ?; e [( [9 l& x - WiFi.hostname("Sparkle");
0 M# j5 I a# s2 ]4 m: S& f - WiFiMulti.addAP("wifi ssid", "wifi password");
" K. V0 |% I* y" k* J Y - int tryNum = 15;3 A8 I, C$ f; G. g0 a" B9 \
- Serial.print("Connect WiFi");1 b% T* q3 y, ]# K( L( F
- while (WiFiMulti.run() != WL_CONNECTED) {4 o& F: j8 `& H4 A' u7 u
- digitalWrite(2,0);/ L+ V y; U: b; D& d
- delay(200);: O j+ |, b+ _6 S1 r, p! v
- digitalWrite(2,1);/ |1 N0 a* ]& B" G% T" l$ J; J* ?
- delay(300);+ L( D5 w, b, h! k( d7 b
- Serial.print(".");
" \( T# X4 ^9 T: }* ~2 Z - tryNum--;9 X' V4 ~3 b5 u$ T+ i2 x n, ?
- if (tryNum == 0) {+ q) h- V5 J" D& g
- // 1min
6 _! Y+ _0 ?8 e, n - // ESP.deepSleep(60e6);
! d! d9 r1 O+ |3 `2 {3 a1 M; y - ESP.deepSleep(0);
" b3 H2 z# T, e h3 S: I. F - }/ u" E& l: h" c+ x
- }
" w! W5 m0 L' E/ G& i( P - Serial.print("\r\n");; i3 _3 c, H" y8 Q; ^0 a
- digitalWrite(2,1);
; n- x, o% Y# M8 p - Serial.print("IP address : "); W' ^+ Y! [0 h. w! _' H
- Serial.println(WiFi.localIP());) G) ^$ S" Q* z/ v! |0 ]
- server.on("/", HTTP_GET, [](){8 m4 B. Z, {% L+ O( O
- server.sendHeader("Connection", "close");6 X9 o/ i/ M! t. `% u2 O8 a
- server.send(200, "text/html", serverIndex);8 d8 S6 Q l& V0 E$ p4 y) H# P
- });
; v9 A7 @( U3 k! L5 w - server.on("/update", HTTP_POST, [](){* J8 R4 Z p" F! ~2 r# R; G9 i7 ]1 N
- server.sendHeader("Connection", "close");
0 }" d- w4 Y6 i2 g; B - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 ]( G& }: `. d x9 e: l
- ESP.restart();
3 J3 c$ }$ | B% P; _7 z- \ - },[](){
9 l0 F" S# h- R. A! }9 R7 C - HTTPUpload& upload = server.upload();# i& D9 P D9 \5 S' ]) O
- if(upload.status == UPLOAD_FILE_START){+ b' U9 y" D2 c
- Serial.setDebugOutput(true);
9 W( D L+ N" e* \. N. O- B - Serial.printf("Update: %s\n", upload.filename.c_str());& a% n' ~( g$ k) y! @! O8 q9 l
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- u: r B* x' ~% Z( Q - if(!Update.begin(maxSketchSpace)){5 `3 p3 _; ^9 ]! {
- Update.printError(Serial);
2 p$ K2 Q! R7 i( S+ B/ b - }0 o" h* r6 g7 z' f2 h# G
- } else if(upload.status == UPLOAD_FILE_WRITE){
: X" z& n/ R: D D - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- M8 y* f% l ~ ], W
- Update.printError(Serial);
+ k% c( ]7 w0 S# a/ o; A - }
7 d+ n' t* w' V8 G - } else if(upload.status == UPLOAD_FILE_END){: Y! m9 _% |0 i$ {, v4 ?: x6 s
- if(Update.end(true)){
3 A! }- y+ V9 D. V: u - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! t0 I. M) M, ~- ]- {6 [/ E$ i - } else {. D& @, c9 `, ~& q
- Update.printError(Serial);
4 ~' [6 }) T' |% o8 M - }" Q \; v$ H- Y# B
- Serial.setDebugOutput(false);
! N; f0 d9 O. y" N" z, ` - }6 o9 n: A' x G% r
- yield();
, {* g3 t9 O; q/ B2 k# _' ^ - });
( R( U: |# r. j1 i4 k! z - / N" K% J& r9 y( p( p' I: \
- digitalWrite(2,0);
- d; |# g. ]/ d - mainAction();
; a: d, h' l Y, e - if (digitalRead(0)){
9 ~1 J; P* d1 h9 l }7 R - ESP.deepSleep(0);6 L. O4 q8 R1 {( _% Q2 i
- } else {+ f: Y, j0 w$ a/ k S" G
- server.begin();' h9 J/ _/ N7 }) i v* d# D$ t
- }
! {9 k/ s. [& D9 `- I# I$ F - }
% r: Y1 _( B3 T* c, ^+ n! \$ s - void loop() {7 M+ j M3 i. C) q4 [" G1 s
- server.handleClient();
+ d1 s; e6 V' S# E0 j" P- ^ - delay(1);+ X7 L+ c+ R7 v @5 f6 u- a6 L
- }" f1 S4 @) C8 @ S/ W
- String doGet(String url){# b# F! p, p" T2 W
- if ((WiFiMulti.run() == WL_CONNECTED)) {
, V, d& B! H% \$ B - HTTPClient http;
+ L3 s. W8 E; v% ~, x - Serial.println("[HTTP] begin...");/ \3 S6 o0 L3 q, k+ z- g
- if (url.startsWith("https")) {' H$ w# a/ C5 L* @/ U ?
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; j; w i! N( r6 P& X- A) K! {
- } else {6 {' S/ V4 D, ~% U
- http.begin(url);
" ?, S9 h) ~" P- T - }
& i! j$ o8 h6 G; e - Serial.println("[HTTP] GET...");
; `5 L+ w6 S5 T L - int httpCode = http.GET();$ k2 d" ?$ o' ]: D9 `5 u& B
- if (httpCode > 0) {
; G0 c. Z! C* } ~: v. ]* O - Serial.printf("[HTTP] code: %d\n", httpCode);+ }% S5 w, Y$ T' H: N
- if (httpCode == HTTP_CODE_OK) {
- {! X1 w" {4 Y& G5 Q6 ^' N* { - String payload = http.getString();
+ O0 V$ |! [) Q- K8 |& k. K: b. h - Serial.println(payload);
% P+ t+ x1 L' | - Serial.print("\r\n");
2 [/ l# n' ^2 _ - return payload;
+ M/ _ S/ I# v& e( s1 _- H - }
. t% c6 F/ B: s - } else {2 A, a3 E: S8 i3 s4 A) a' z
- Serial.printf("[HTTP] GET... failed, error: %s\n",: f* c5 \, m# U8 ^4 }9 |6 N# n
- http.errorToString(httpCode).c_str());
2 k& o8 R0 D3 R d( D - }- h3 C2 f1 c& A
- http.end();6 M/ i) x3 |7 |( {) A: e( Y
- return "";
* q- B* {1 }2 l) y3 p - }
1 f' R A: G. H% B# l - }! L# u. M3 ?1 h3 Y
- void mainAction() {
( v# P3 t+ @, B4 c9 N1 N3 _, U - // 发送请求
- D$ `9 }& F$ f& x( q0 { - doGet("http://google.cn");
2 s8 D$ w" X( D$ g - }
! A0 F7 `( S# g9 E7 _* v( c3 ~
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