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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)
% Z9 p7 D. @$ F% R }, R- #include <ESP8266HTTPClient.h>/ k+ W( w% L6 G' r8 \7 V
- #include <ESP8266WiFi.h># W1 K1 y; e0 d; a, W
- #include <ESP8266WiFiMulti.h>
; U9 n" D' j" M3 j8 \5 Z - #include <ESP8266WebServer.h>
3 W4 D& y P( m# v0 C$ X - #include <arduino.h>
0 a {6 V/ T L8 e7 y) I0 F - ESP8266WiFiMulti WiFiMulti;
! E0 q% u/ w2 X2 y: {) A0 r - ESP8266WebServer server(80); D0 y, {" f7 J8 @. o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";% L) u( R6 [+ l9 D3 u
- ADC_MODE(ADC_VCC);* `. T. z: v: f$ ] E* ~+ W. \+ C
- void setup() {8 u% D: G% A1 u( L( H
- Serial.begin(115200);
# F+ P+ ?% Y. g* F: F2 u* S- J! \4 b - Serial.print("\r\n\n");
# k6 {& ^; [( i* m0 k! H* b - pinMode(2,OUTPUT);' ? i. E4 }( D- U! O' _8 n
- // WIFI
& n! f1 w5 J& E) Q; E. P - WiFi.mode(WIFI_STA);+ Z4 Q) Y& Z$ l
- WiFi.hostname("Sparkle");- k. m1 o9 c5 y/ `, V* L* d
- WiFiMulti.addAP("wifi ssid", "wifi password");
6 m9 ^: F0 r! k6 d' M0 R - int tryNum = 15;
- S/ l& v& I O& c - Serial.print("Connect WiFi");5 J) r. }; k4 ~9 C6 P
- while (WiFiMulti.run() != WL_CONNECTED) {
. z3 w& n5 @+ U3 I1 v2 K# p4 D9 D7 |8 A - digitalWrite(2,0);
4 d2 l0 Q6 u( A3 J! S. ~ - delay(200);' h6 T0 o- V/ W4 k
- digitalWrite(2,1);
+ T: T2 P9 t' b6 G) l0 y - delay(300);0 K9 p4 m( r. _9 v0 M1 E* ^
- Serial.print(".");: k( p. A! z { y( g
- tryNum--;0 v2 M1 V) p' d8 a
- if (tryNum == 0) {
$ ^! z- o- a, x2 ] - // 1min
7 J9 @6 B2 t+ X; q/ @ - // ESP.deepSleep(60e6);
9 Q" P/ f9 F6 x: j+ X1 ^$ [' U8 H. q - ESP.deepSleep(0);
( D1 h. t& w& R" T- v' ^ - }' l4 z) v$ t8 b. d* `
- }
1 R3 x. r, M: f* s. Y; M2 R - Serial.print("\r\n");# Y+ M' q/ A6 k
- digitalWrite(2,1);3 @# \ K; Y. V- t& _( o
- Serial.print("IP address : ");' t: v" U' p4 O$ V. B
- Serial.println(WiFi.localIP());/ X: g2 t' _7 d% D6 l* n7 i m
- server.on("/", HTTP_GET, [](){
0 i1 J8 k0 e9 i* S4 C - server.sendHeader("Connection", "close");- P5 j' G* G4 C8 r8 _; e) W7 ~
- server.send(200, "text/html", serverIndex);5 j4 {2 N: U+ a' }
- });
3 b: f) |! h/ M9 d) ^2 q - server.on("/update", HTTP_POST, [](){6 b$ s9 H# }9 v! C3 E5 n
- server.sendHeader("Connection", "close");
3 Z7 M8 m* e. E - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# e1 ?. U; S# y - ESP.restart();
% _1 T4 V+ n8 b* c( Y: J - },[](){1 @# C5 [- m5 ^5 G; t: Q
- HTTPUpload& upload = server.upload();. u: x+ B0 V! ~; ?' D8 G3 h2 @
- if(upload.status == UPLOAD_FILE_START){. m" |: A1 U' x4 l
- Serial.setDebugOutput(true);4 i/ g6 h( |7 \9 @9 a
- Serial.printf("Update: %s\n", upload.filename.c_str());+ G( p" O2 I: ^' r4 E% C3 ]
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* a0 j. p# y+ i" z% ] - if(!Update.begin(maxSketchSpace)){
& B2 }1 O' W1 n! h8 f8 H7 i+ L - Update.printError(Serial);$ j8 g+ z( R' w, h
- }( _* Q' o: o( z+ g) w. p$ E
- } else if(upload.status == UPLOAD_FILE_WRITE){
, f1 ~, ]* A: B - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 U& {; S& r0 W7 J2 m - Update.printError(Serial);
* Z+ ^& n( @+ B+ H - }+ H7 T" n* x4 t, i5 \
- } else if(upload.status == UPLOAD_FILE_END){& ]3 O3 a& s0 B1 P: _
- if(Update.end(true)){) r/ e( Z) U. R$ s9 x" W2 j& O
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' s! H; B* E& f+ D: H - } else {/ R+ M6 Q+ G% S8 u
- Update.printError(Serial);
( S& f6 c( ]+ p( J - }2 i7 m# | u W8 Y
- Serial.setDebugOutput(false);
) r, {+ ]) ~4 K- h/ z! t6 v - }, D$ q t; J+ m/ P
- yield();
3 u) Y- ~2 W5 T% Z/ g N6 Z+ S4 S - });# G# G; ]: T- o) C
-
& m" z1 x- r# m1 j$ P H O+ e - digitalWrite(2,0);
3 J. R2 m- n" } - mainAction();
# s! A7 e, ?, c. L; B T& s - if (digitalRead(0)){0 a2 c+ t; n- {6 H
- ESP.deepSleep(0);! H! W m$ L; M' g6 B2 ]; M
- } else {- E% o4 @ t' |
- server.begin();
# t& o7 H$ y2 N" p% K6 `2 o - }/ y7 ^' }" A. W
- }( z/ n; a, M7 {: f. d6 Q
- void loop() {
- H$ A h) o' N- j3 X1 a( f - server.handleClient();- N: q8 r2 y1 s
- delay(1);
. O& f! j7 m# B- X$ q - }
R i6 U/ h' X; U9 }. n/ j - String doGet(String url){
7 _' w8 g! f* m4 W - if ((WiFiMulti.run() == WL_CONNECTED)) {
, A) g: ^. k0 X1 j9 F# v; }: ] - HTTPClient http;4 ^' `6 t+ t% V1 G1 Y
- Serial.println("[HTTP] begin...");
/ t1 g9 b7 ?: p) _ - if (url.startsWith("https")) {
( m, b3 r2 M# Y; E7 G- h: T: L - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ x0 P+ f3 P, N l6 Q% g4 R' ^
- } else {# z: n) S" A6 k. V/ f5 _ J7 @
- http.begin(url); f8 L, a B# J. U' _- c
- }& P# I( L3 M2 s0 Q3 W% ?
- Serial.println("[HTTP] GET...");$ b: ~9 [! F c
- int httpCode = http.GET();! d* i8 p. Q) N
- if (httpCode > 0) {. \3 _4 `- R7 P2 R
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 j: W1 m# s% @0 ?5 ` - if (httpCode == HTTP_CODE_OK) {6 g) l& L4 p8 X: o; t4 x: j, k7 I
- String payload = http.getString();7 z7 [8 K# V$ M3 b: B) k
- Serial.println(payload);
$ s, L6 z* ~& Z$ H - Serial.print("\r\n");
( {7 n9 A% ~! b' k - return payload;/ D& @; x$ \* x
- }
6 S; r, F2 A" F- P- ^/ ]6 Z5 P - } else {
/ H' d5 J" E6 `: d$ |. c* s% P - Serial.printf("[HTTP] GET... failed, error: %s\n",
8 W0 ^# p, I+ ^' H - http.errorToString(httpCode).c_str());) W3 }6 K5 P/ J4 Q2 p/ P) d6 E
- }3 z6 S1 ]1 U( G9 Q' C) J
- http.end();
7 _( w6 Y' M+ x - return "";2 M a8 c7 h7 A7 S8 z1 z$ w9 A
- }1 l) b$ f6 W7 h2 _, q
- }& I6 D3 k# ~5 _6 Q$ k* i& o
- void mainAction() {
E W0 ]7 h* t, G - // 发送请求
$ J9 V8 l, R/ z3 B. q2 ?' Q% h' ~' f& u - doGet("http://google.cn");
% s! }% U; g1 q. m. c8 V; q& d - }7 v( ?. f9 K+ T; O! g% V* m
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