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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 N& G, h# J# t O
- #include <ESP8266HTTPClient.h>/ G# S- t+ N- p3 G$ M+ x) Z
- #include <ESP8266WiFi.h>
) z# x; n! c3 L# A% ?) G8 Z& v' n - #include <ESP8266WiFiMulti.h>
5 l( b5 F0 B: e9 m+ m: c - #include <ESP8266WebServer.h>
4 b- b! W- b! y& Q1 m6 l& M& n! U0 T - #include <arduino.h>
5 `2 N. z# ?; o! x - ESP8266WiFiMulti WiFiMulti;
5 ^3 J$ W3 y" {) w0 M - ESP8266WebServer server(80);
, s6 b, d4 C$ k! A7 ?4 Q( @4 Y - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: \% ]4 \* r5 Z
- ADC_MODE(ADC_VCC); \$ w2 R7 I: M/ ~! A
- void setup() {/ s* Y5 }% w& u( x
- Serial.begin(115200);
1 o A- K5 l- s/ `8 \; W - Serial.print("\r\n\n");' u9 x; b& T8 Q8 H' y9 S
- pinMode(2,OUTPUT);
# |0 z2 i) C; N: `5 D2 i' f. t - // WIFI
" z/ Q! k; M$ a9 o9 _( k% @ - WiFi.mode(WIFI_STA);
6 f" M/ G2 V" o, q: ^# _- [: Q - WiFi.hostname("Sparkle");; x" r& f% Q0 U1 f0 A' _
- WiFiMulti.addAP("wifi ssid", "wifi password");& g0 y3 a0 F1 u, D+ M3 Q
- int tryNum = 15;
( i7 r9 m- V2 t$ i- z& z* j - Serial.print("Connect WiFi");
( k7 S; D& H& G7 y& _3 [- a) ` - while (WiFiMulti.run() != WL_CONNECTED) {
% [! d3 q6 M5 h8 N- }& O - digitalWrite(2,0);8 A9 t* B* d3 v7 T( a; y0 g
- delay(200);* M! f. J" c6 c/ f
- digitalWrite(2,1);
9 e" A8 _' ^8 e. ^( A3 Q7 ] - delay(300);& u% S) B$ l$ u) E/ C4 F4 N
- Serial.print(".");- x R8 _: w) Y& G) q5 i% s8 }
- tryNum--;( w7 {: c0 X; _9 }+ s
- if (tryNum == 0) {4 N1 Y1 y' u0 d4 h! [6 `
- // 1min$ e: h1 x8 H7 ^6 X) d! m/ D) h
- // ESP.deepSleep(60e6);
. x" N8 l3 I2 h9 S% y1 G+ K f6 b5 | - ESP.deepSleep(0);
( J+ ~) N. d2 S* S& Q - }! K/ v m6 i8 G: @- D2 Z+ q
- }
( s% I$ U% `3 ^2 J. @6 |5 e' P - Serial.print("\r\n");# A/ p* Z+ D0 v! E- N
- digitalWrite(2,1);+ s/ L0 A9 i$ C8 H) P
- Serial.print("IP address : ");
* E+ l" [# o( t7 t1 w j' g - Serial.println(WiFi.localIP());$ R/ v: i) t- A" F' A. ]/ B
- server.on("/", HTTP_GET, [](){# g( M& l8 \* j* h# W
- server.sendHeader("Connection", "close");
?7 ^: c2 P/ i/ F, P - server.send(200, "text/html", serverIndex);) Z7 U! P9 z. a1 y/ [, w9 [& o9 L* i
- });& e. b- K1 ?( X
- server.on("/update", HTTP_POST, [](){6 V+ P! E# I* n& I$ Z
- server.sendHeader("Connection", "close");
/ l5 ^, ^- y5 t7 o8 ~) Z8 Z2 S H - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");: U8 L6 N+ B$ a$ l. [* ]( Z
- ESP.restart();/ ?& G- M# K, v7 V+ G, T f$ i
- },[](){
& v6 Y4 s) b, m5 ^# J0 x4 s - HTTPUpload& upload = server.upload();
Q4 y# C* V! R - if(upload.status == UPLOAD_FILE_START){
$ {) B2 p, y- E% A - Serial.setDebugOutput(true);0 p) S2 T) Z b0 H3 f t
- Serial.printf("Update: %s\n", upload.filename.c_str());
3 T+ A5 p: C @3 L: K. f# f8 ^ x8 k - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; \0 \4 ?% W/ W7 ~1 u( z
- if(!Update.begin(maxSketchSpace)){
/ P' W* ^1 r' H - Update.printError(Serial);
( `3 M6 ~6 i5 q+ e G: S - }& o4 }: x9 j. z' ?
- } else if(upload.status == UPLOAD_FILE_WRITE){" X- [' L! W* c1 l3 c2 x
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){/ \3 Y* W$ }# W9 ?. e
- Update.printError(Serial);
; k! {' H% a! O% g F! L - }% z z& V X3 Z7 _
- } else if(upload.status == UPLOAD_FILE_END){
6 O: \ y! \8 Y, x - if(Update.end(true)){+ H" j" A* H; \1 e2 X* e3 }
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: R3 ^' T* J' Z4 r6 I# p; d, B# u - } else {
" z& R) H e, P - Update.printError(Serial);' F% H2 H; c$ t& q% ~/ [6 j, C
- }
( x& q7 K' S* A1 w - Serial.setDebugOutput(false);
" x6 h! I4 k, S8 f - }. k3 \* `) R5 z/ ^+ I
- yield();
2 n! r1 i# i Z6 Z( o - });
~9 p9 }3 h) W. c4 `! n8 S) v - 4 ^' g$ J* {' ]$ Y4 k/ n; ?
- digitalWrite(2,0);* v4 j* {/ R$ ^/ o% R+ |2 Z
- mainAction();
# O" j+ l2 O) c5 Q0 _: N7 ], L - if (digitalRead(0)){
0 V! L8 c( _- s9 G* U7 f - ESP.deepSleep(0);
* j- N% B2 c0 S8 r3 h - } else {) {. f, s3 }' R; t( ?
- server.begin();9 P9 y/ C! ^5 U+ H0 `
- }: S1 r6 d5 A( K
- }
; I% i, B- |8 E' c. Z - void loop() {* G0 l7 l, e& A9 T! M
- server.handleClient();+ }7 c; i A& G6 B9 e
- delay(1);
6 \- @ f. F3 L: f! K$ n - }9 T! Q Y! _& s8 Y. }
- String doGet(String url){
, E6 B, v9 X* C. P0 O: d - if ((WiFiMulti.run() == WL_CONNECTED)) {- A' F, y; s) I) I7 x' X
- HTTPClient http;9 x* X! P5 Q1 c- f) T1 S
- Serial.println("[HTTP] begin...");
* k1 ~3 |$ X6 s - if (url.startsWith("https")) {
2 G6 ]" k; R9 h9 q4 Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
# \% }2 T& {1 k4 w - } else {
, {5 P% d7 @, O; W - http.begin(url);9 T0 Q& `! _8 V3 X! H% v6 f
- }; f) K( B# J/ ~. E0 M
- Serial.println("[HTTP] GET...");
( |( |/ V7 u5 j" J - int httpCode = http.GET();; V0 c( t* [, M2 `5 s
- if (httpCode > 0) {3 o& f7 p- ]/ {' U
- Serial.printf("[HTTP] code: %d\n", httpCode);& Z8 [3 {9 r _# ^( Q+ W6 _% K
- if (httpCode == HTTP_CODE_OK) {
. P" l9 S# Z( f: _ - String payload = http.getString();
; _: U% o1 h2 D2 r5 s" b - Serial.println(payload);
J+ r5 Q1 j+ \3 A3 {, W9 | - Serial.print("\r\n");8 ], t6 P4 J$ u `
- return payload;1 r- e0 I3 Z' d( d
- }
) J: `- y& k' d' D( c - } else {
$ z8 [$ z D! H$ o# m) L. k2 r - Serial.printf("[HTTP] GET... failed, error: %s\n",' ~2 |) m0 K5 v: z# p6 @
- http.errorToString(httpCode).c_str());
1 w; b7 i; S. ?& e) B - }
* r1 r" S' a+ ^ b: ?( q( }1 u3 v - http.end();
; y/ h2 R1 B) }! @ - return "";' P2 {3 M- T+ _/ g
- }& K) p5 `8 |0 v& Y0 T) D
- } r( \0 \' P1 V6 M* B! V: f4 I
- void mainAction() {
1 Z- N4 L- L0 K5 i - // 发送请求
9 ?, q6 Y6 }- \# k+ k/ A6 O - doGet("http://google.cn");) `" g, c2 ?& `( ^% J! @5 g- K
- }
* f( i, m5 G& x- B/ n1 l2 r
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