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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)
0 ]' y* E6 t/ N( ?! g- #include <ESP8266HTTPClient.h>5 _, P% S: m8 k
- #include <ESP8266WiFi.h>
% s1 E3 c) E5 z2 o5 @" |& h: h - #include <ESP8266WiFiMulti.h>
% k1 y: J Z! H' F$ A) Y - #include <ESP8266WebServer.h>
& F$ {) O( y. a3 Y& h5 a - #include <arduino.h>
, E* P9 ]* M, B: T! F! u( u% X - ESP8266WiFiMulti WiFiMulti;
8 n) ~$ p+ E) _2 f - ESP8266WebServer server(80);
. c( C4 q0 W( a2 `+ w- r" X - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 \! @' b6 U5 {$ L
- ADC_MODE(ADC_VCC);
0 J' ^& {" t1 |, s* H% F - void setup() {
, B8 Q% X: e( r- z$ o" o - Serial.begin(115200);
' h8 c: C% J' X5 A: f - Serial.print("\r\n\n");
1 f9 b1 T' P4 b7 ?; a6 D, `) x - pinMode(2,OUTPUT);
9 [( _8 v- L& h1 j% T. N( d - // WIFI8 T8 L- {+ \6 Y/ [
- WiFi.mode(WIFI_STA);
" n4 q2 U6 @ d: u! J - WiFi.hostname("Sparkle");
% \! V# c0 O/ m4 i% {* J% p U; E - WiFiMulti.addAP("wifi ssid", "wifi password");% b: V7 w3 c' A, j4 ^0 l( O3 ^" W
- int tryNum = 15;
4 p" d5 r1 Y2 L& D8 K0 _ - Serial.print("Connect WiFi");6 b6 j) d& T, R! M
- while (WiFiMulti.run() != WL_CONNECTED) {6 b3 {' e! {) d, \5 U! w( J' i
- digitalWrite(2,0);) D* m$ Y' L+ r B7 [0 s; z) X& F9 o
- delay(200);7 l( G: a7 g9 w; t4 R5 F6 u4 l3 X
- digitalWrite(2,1);
) w& A5 b, F+ i! z" E* N - delay(300);
! F4 e @0 [7 E' Y3 J - Serial.print(".");
. m: v- P, n- x - tryNum--;
5 X4 g. m9 @1 d# o - if (tryNum == 0) {7 m/ F3 \! z9 t2 M* ~
- // 1min
0 \% P3 C; q {5 u& G - // ESP.deepSleep(60e6);
) ]2 t5 T$ @+ p% ? - ESP.deepSleep(0);1 B7 K, L" E1 L1 B9 c. h, a# _
- }& f1 T' e9 {( }5 h
- }
* Y! E0 Q. \5 X/ v3 j$ h$ J - Serial.print("\r\n");
2 m* D: i+ L* q w5 G) ?+ D5 q - digitalWrite(2,1);0 P/ a! v6 o% }0 ^+ M# n
- Serial.print("IP address : ");4 K4 v+ L3 M2 D8 i$ c8 p- @& @
- Serial.println(WiFi.localIP());
4 y* ?6 O/ P* R8 W$ @ - server.on("/", HTTP_GET, [](){
2 l0 C) n6 M7 ^. A1 W4 z+ N - server.sendHeader("Connection", "close");
% |/ I# u8 K4 b( r H0 y. q - server.send(200, "text/html", serverIndex);0 q2 s8 M* H d
- });
, g0 V% _. ? u! R - server.on("/update", HTTP_POST, [](){
! U1 W) _5 u1 @( b4 Q: A+ Z5 |0 J - server.sendHeader("Connection", "close");$ c* r7 x2 V. I# [8 f: n$ P
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 n* Z( ~1 |# N2 L W
- ESP.restart();
, @8 G1 @5 q @7 `0 }( i - },[](){5 ]; r3 I- z8 U4 r* N. B
- HTTPUpload& upload = server.upload();
3 Q( D& Q3 q+ @ - if(upload.status == UPLOAD_FILE_START){# ?1 n7 U" f1 v1 S/ p- e3 A
- Serial.setDebugOutput(true);3 v% v Z! D' B" b" F7 d |
- Serial.printf("Update: %s\n", upload.filename.c_str()); q2 s9 j) D$ j2 a
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 K8 N5 y X+ o" ^# L- T" i - if(!Update.begin(maxSketchSpace)){) ]3 b+ l' q/ \, Q
- Update.printError(Serial);
" ]1 Y: p& o; C4 _/ Y# d - }) w$ M. G0 s5 o- t5 `. H2 w$ _
- } else if(upload.status == UPLOAD_FILE_WRITE){) a1 x, X$ Z! ?) B' g8 n
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
5 e' ^6 I) W1 j$ P2 a/ v - Update.printError(Serial);
0 H% S) L' q! |- \2 d! k - }
4 c4 G i& x% C) L- Z. R% L& m1 y - } else if(upload.status == UPLOAD_FILE_END){; l1 C6 N# N' ]2 a
- if(Update.end(true)){
8 e" S8 b# d p6 T# ] - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 }. U& x8 y- H
- } else {
& Z/ W) R8 i/ H, { - Update.printError(Serial);
. a; A0 y; p" r* X1 v+ P1 Z - }$ q' _$ ]. P6 E
- Serial.setDebugOutput(false);
3 e$ x4 A t; \/ J4 D2 Q. J - }! I& _. C4 {0 z- v7 L. s, _
- yield();" u* O9 @! ^: N+ f/ \; j
- });
9 w8 O) P8 ~" R( k3 [5 u" U -
& c7 h/ z' j: \7 ]9 W - digitalWrite(2,0);
: { B3 P3 `* ?% u4 N - mainAction();
& G& \" }5 Q) i7 [5 P - if (digitalRead(0)){
7 G0 m2 E0 Z% \- ?- b- b& s% m, R - ESP.deepSleep(0);
[, i( n: M5 k _$ T. C2 N0 A+ L - } else {* H% G/ T$ O5 R: Z
- server.begin();+ H& B. Z+ p, ?* i; I! a5 s, p
- }
3 ]6 H9 y# v0 D3 S, ~3 P+ q - }
6 g& c. A# R4 U2 L! V - void loop() {* j- c7 S$ Y1 @$ F
- server.handleClient(); Y% w- ~+ j" [. g% Q# \* c2 `
- delay(1);
* ~* l0 o# f9 f* f5 b9 {0 T - }1 C7 r- t1 g( b+ ^& V
- String doGet(String url){! _) o" c9 _( [! ?8 H7 c. J
- if ((WiFiMulti.run() == WL_CONNECTED)) {' P, i$ n3 ?4 Z4 Q$ j1 ~( Q
- HTTPClient http;
6 b J" D: v0 _3 T - Serial.println("[HTTP] begin...");4 X. e# v5 X% c3 |
- if (url.startsWith("https")) {
2 v3 N- i/ E6 S- v - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# r$ ]" n2 s+ {' n: O) {8 x - } else {, ~$ h4 a+ f/ F; Y3 v% c
- http.begin(url);3 b$ W1 C. r7 Z
- }
' c+ {; J3 e6 D1 k, ]" [$ q - Serial.println("[HTTP] GET...");& g9 |' O& n4 K# Q, Q
- int httpCode = http.GET();: a" H3 f* s/ u6 i1 e5 E( l @0 q5 U. }
- if (httpCode > 0) {
* x0 G8 L, Z/ f* N7 ^ - Serial.printf("[HTTP] code: %d\n", httpCode);9 j) e; W. R4 g8 x) x6 x2 J
- if (httpCode == HTTP_CODE_OK) {
- P6 @+ t$ i/ ^9 d/ Q/ E$ A2 x6 d - String payload = http.getString();
$ v* p; e9 u8 Z- ^' j9 l$ U F - Serial.println(payload);4 i( F6 v9 T$ s u4 Z8 z
- Serial.print("\r\n");
' n7 J- m/ K2 o9 D B D& G5 m7 _ - return payload;
- i1 r/ s. Y1 Y& e; D - } U* u( |! X/ k
- } else {( e4 T1 i2 q) T E8 B8 k" `& s
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ ~# a* z8 D7 s; t' p' J6 c/ q
- http.errorToString(httpCode).c_str());9 j0 Z6 c# O. g; j9 d9 O
- }
, K3 P' b0 @3 ?( l7 Q - http.end();8 }" l( f. t/ L, P( @
- return "";
' k$ g1 e! z: Y - }3 R1 R, T$ v2 c* Y( J+ F) P I2 p
- }, D X2 v% e/ J( B" l$ [
- void mainAction() {6 t/ Z2 u; E9 O
- // 发送请求
# [2 N3 X6 z- O, S% X, d& i+ O - doGet("http://google.cn");
1 q @8 z1 n2 B - }( V7 ]: R% B* i8 Q4 K
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