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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)/ g, J4 x% E4 \3 { `) j
- #include <ESP8266HTTPClient.h>0 O$ X+ d4 {/ k( Z. O
- #include <ESP8266WiFi.h>0 Y6 g* U. z. B9 J" D8 e- m
- #include <ESP8266WiFiMulti.h>9 l: N( \# `6 x" `
- #include <ESP8266WebServer.h>% w; c' K1 O& o* g
- #include <arduino.h>4 h* r3 U6 C" w: X
- ESP8266WiFiMulti WiFiMulti;
% M. j" l% H! M' q& w7 l8 P) U - ESP8266WebServer server(80);
9 }9 ~. y! z/ H - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";3 E# P1 I4 l& C( r( q4 p9 T/ o
- ADC_MODE(ADC_VCC);
. c2 J) a1 F# n( O! X# F - void setup() {
' E2 z2 Z9 N+ N, G4 Z+ O" i - Serial.begin(115200);, f$ i0 L6 R: H8 i
- Serial.print("\r\n\n");: u, C/ A) e- i) `
- pinMode(2,OUTPUT);( }7 x4 f; j' f6 q: C8 ^
- // WIFI8 Z1 Y0 h, w: _6 q2 d6 K% z
- WiFi.mode(WIFI_STA);+ t. ~4 j& A, O# _) K7 Z6 q
- WiFi.hostname("Sparkle");
. x' q: @) Y" T4 A% H7 Y( G2 Z - WiFiMulti.addAP("wifi ssid", "wifi password");
_3 W% }3 S4 N, W$ ^ - int tryNum = 15;
. K0 q; K* F. r' p8 Q6 P; y* W9 B - Serial.print("Connect WiFi");
8 k& z9 `& W- M& {% T! }7 N0 W - while (WiFiMulti.run() != WL_CONNECTED) {, G6 w Z e, H/ O. _
- digitalWrite(2,0);, n' i0 Z! _! P4 h4 F
- delay(200);
5 N/ U" f) R' k% |/ j8 h - digitalWrite(2,1);; W( ^8 ]: @; A
- delay(300);2 a, i$ {( D, g- K' c* P
- Serial.print(".");+ [1 X! T$ l u- @; q- i1 z
- tryNum--;3 k+ I' ]/ d$ X" @7 n' I5 i, M
- if (tryNum == 0) {* `6 b$ { V' S
- // 1min( J' d2 v: [& ~" f* v
- // ESP.deepSleep(60e6);. a+ v' I# M& h; W4 f$ t5 a. J
- ESP.deepSleep(0);
" A: s" L% n4 p - }
' }0 o! Q1 w# d! ^+ T% d/ d7 U - }/ t& M4 v6 W' i- _- U$ D& _
- Serial.print("\r\n");
, p; X2 ]: O7 b* o; q3 h. _ - digitalWrite(2,1);/ y1 }6 T, z6 ]( s; b
- Serial.print("IP address : ");
& c7 N. x4 j( Y6 v4 S) V - Serial.println(WiFi.localIP());
5 o1 W7 F2 O. @4 f% |' z" C1 M - server.on("/", HTTP_GET, [](){
5 S* Z9 s& k8 x - server.sendHeader("Connection", "close");* ?# ~. J. n/ r! b) ], x
- server.send(200, "text/html", serverIndex);8 p( ~/ c$ k# g! D: f- q+ P1 e
- });. b( G$ o) c' [5 l
- server.on("/update", HTTP_POST, [](){
. K9 z2 X2 T. _7 ]: [ - server.sendHeader("Connection", "close");0 v. j1 Q* I5 Y% i& v
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 L0 g6 x& n: w& C9 ]4 q' F - ESP.restart();
; ^/ z4 f5 W: r- Q$ M - },[](){
, F: ~5 i& J7 T8 K/ g+ O" G# e - HTTPUpload& upload = server.upload();0 k% p$ e& t6 d
- if(upload.status == UPLOAD_FILE_START){8 d, C: z) }8 _5 A" }
- Serial.setDebugOutput(true);0 u' K+ ^# s& M* l/ N% F
- Serial.printf("Update: %s\n", upload.filename.c_str());7 t# ^+ R3 m3 Q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
D( ` O3 h+ O; L - if(!Update.begin(maxSketchSpace)){
8 e0 l& l5 v r% h - Update.printError(Serial);
3 K9 a G. R9 D* u6 L" y7 D d - }
2 ]6 o9 K$ g1 {9 d: T0 s) t% m - } else if(upload.status == UPLOAD_FILE_WRITE){; o+ b( h1 D5 f
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
- y) x8 e; N( p - Update.printError(Serial);+ m$ g: H# J* G$ x& i; v+ U
- }% Y3 o& K$ c3 h) J
- } else if(upload.status == UPLOAD_FILE_END){9 c, J) |+ ?( \7 N9 k9 E. F
- if(Update.end(true)){
% }& N( C* z* ^3 } [! x - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 [7 P/ q$ k, ?8 M: b
- } else {) j( y% @- X& I4 N3 v
- Update.printError(Serial);
6 t: O+ A/ B1 K% @. w7 \9 g9 i - }+ d6 X! U* O/ j0 |2 d6 r3 y
- Serial.setDebugOutput(false);* V& y0 M6 Y7 I* }: w% d( |0 G- U( @
- }/ p/ g+ C2 _: h" J. H; ~- F# r
- yield();- ?3 e( j5 S0 l
- });) i$ T) [; x4 M9 V6 V+ [. w% O% S
-
, K" ^) W, P ?4 \2 G - digitalWrite(2,0);- t( S4 o9 @# E5 k
- mainAction();4 S' q9 j# y% E* {. U2 X
- if (digitalRead(0)){& p" k: J- U* d* m2 ]; q
- ESP.deepSleep(0);
: d8 n, u0 J+ r/ U( x& A; _0 ? - } else {. A- N5 z9 [0 ]8 p! h
- server.begin();
( c! L+ y' V+ ? - }
. p" Z5 H+ u) O+ t - }7 n' N2 [7 u9 Z# X1 t, Q
- void loop() {
5 a" p X& ^) W - server.handleClient();
! M, E2 L3 I2 q7 h- O$ ^ Z8 K2 }2 ] - delay(1);& c" K; P. g6 t" p% c; B7 B+ u
- }
+ v4 P* \+ u" q5 M4 X" \ - String doGet(String url){$ K% `; s/ I2 g: \
- if ((WiFiMulti.run() == WL_CONNECTED)) {# Q- o" y: z, p. W
- HTTPClient http;
0 R* @1 Z7 Z4 r0 g0 r( F2 l - Serial.println("[HTTP] begin...");' `) F/ F. D* i. K2 R% ?1 Y
- if (url.startsWith("https")) {
" i' N: f9 o! z" R6 j5 Y, ?, r! E3 ?. r - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; _! b, E# O2 _, J% L. h9 z: j
- } else {0 e9 D" D% g. r( B- p9 L
- http.begin(url);+ M, |! O1 T* F+ o1 i5 O! S" o
- }/ Z$ l2 O) V* A3 i: S' X+ |' n/ H% A
- Serial.println("[HTTP] GET...");
% k& f/ `( V2 Y5 W - int httpCode = http.GET();$ a9 i) k! n6 H3 _; j/ l
- if (httpCode > 0) {
; F8 [1 @! d3 }7 t a, W' H$ I - Serial.printf("[HTTP] code: %d\n", httpCode);& c( s" O2 B! }6 D( K
- if (httpCode == HTTP_CODE_OK) {8 O* D" X( d9 T! `
- String payload = http.getString();5 Z! s. [: T# j; m( P
- Serial.println(payload);, E7 L7 [& L3 |+ }6 q5 B
- Serial.print("\r\n");9 u) A, d% |! @" @+ Z1 q* j
- return payload;
# O9 F9 D3 h+ O6 y( E) h9 H - }; }: e3 ^* o# a0 b
- } else {
|5 t; c: w- e3 `* O$ h$ l - Serial.printf("[HTTP] GET... failed, error: %s\n",! k+ F( d$ Z+ L0 n3 x: l1 d1 e
- http.errorToString(httpCode).c_str());, v0 m' B& D9 O) `
- }
! T7 t5 f- T3 J2 b; L8 Z - http.end();
9 x" b0 K1 f8 }6 Y/ c9 v4 _% j' Q; V - return "";+ M$ ~- K/ ]2 M% p# t
- }
1 |! f3 L k8 q! Z - }: q6 O9 f* ^9 s2 K
- void mainAction() {
7 q( A8 c9 x- l1 f. A; x - // 发送请求+ [5 d5 j4 G9 z" v
- doGet("http://google.cn");( P8 }8 r. x; W* {+ m/ i
- }
: Z& I: m: l/ m2 L: |$ p) c
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