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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)
6 f4 c- y0 P3 r7 L: h' h( M' x- #include <ESP8266HTTPClient.h>
: F/ Y' S* Z* g4 P - #include <ESP8266WiFi.h>; Z4 Y1 O& g1 u
- #include <ESP8266WiFiMulti.h>
% L* A8 A) m* F8 a: s( o1 z) W - #include <ESP8266WebServer.h>
0 Y$ ?& m4 a3 _5 g4 B - #include <arduino.h>
/ R8 H v8 `' @6 N, C - ESP8266WiFiMulti WiFiMulti;
* \2 u0 O z4 w: | - ESP8266WebServer server(80);: F$ Q" z! U) f2 T8 Y9 d
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";( ^ H6 g3 U6 n1 q0 Q+ Q
- ADC_MODE(ADC_VCC);* l8 |9 k6 G" i1 \) ?& H
- void setup() {% V7 D' T, X5 m3 M6 V; w4 \
- Serial.begin(115200);( Z5 S5 W; R: p4 N' w6 U0 Y9 W
- Serial.print("\r\n\n");( M+ E% B* r* g; p$ C% A% N
- pinMode(2,OUTPUT);9 x8 G6 A* X( m* c' L' ~& g
- // WIFI1 }$ Y5 c) b2 Q7 s7 z6 z" n$ h8 n: A
- WiFi.mode(WIFI_STA);( p4 L1 j, z- F. q; C( N7 I5 g$ r# T
- WiFi.hostname("Sparkle");
O( S( s1 N- ~/ w. U) A& G: b - WiFiMulti.addAP("wifi ssid", "wifi password");
0 d+ p7 l5 i( h+ Z$ O - int tryNum = 15;' S! D& n3 G |
- Serial.print("Connect WiFi");
! t3 [1 `* n! f8 k* K+ E9 @" f - while (WiFiMulti.run() != WL_CONNECTED) {
. r& p$ \9 s- I% Q" z1 h( y - digitalWrite(2,0);1 X F9 {0 K6 o
- delay(200);% V. m6 k) h- U
- digitalWrite(2,1);, o( }4 x ~& W+ w3 ~3 k. N0 D
- delay(300);3 q. y, a8 T6 v; E# k( \5 \
- Serial.print(".");! ^6 G0 U" r- K" a
- tryNum--;
0 V! G0 J! e7 I3 N+ p1 E - if (tryNum == 0) {' r" T+ Y# i2 l
- // 1min: ]6 a! q6 m9 d, k, |3 Z5 R
- // ESP.deepSleep(60e6);
% p/ {2 k7 f- `& a$ P3 x - ESP.deepSleep(0);
" C+ L* F! {8 u+ K3 K; d - }% ?0 i1 g+ @& j& t
- }$ H* P$ Z: W( U v) @4 }3 Y
- Serial.print("\r\n");5 Q' q: O* o5 z
- digitalWrite(2,1);
5 v( S, b1 k% D- J - Serial.print("IP address : ");2 y5 d! l' M1 o! Y4 {0 K
- Serial.println(WiFi.localIP());& {3 M: `) [& E) [9 R
- server.on("/", HTTP_GET, [](){# L$ K! I% `9 E" t* O
- server.sendHeader("Connection", "close");
# ~; M) I f2 x3 G - server.send(200, "text/html", serverIndex);6 d' u( D$ ^- r, R, I: d
- });+ a* j1 j/ p4 ~
- server.on("/update", HTTP_POST, [](){$ U$ M; u$ Q! e, e; k9 t
- server.sendHeader("Connection", "close");
, c& w! B& @& ~ N8 F - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");9 B' v' ~/ R( w8 g3 G
- ESP.restart();
+ Y6 d+ W c$ P' A a7 h - },[](){ K: i$ E" f9 r3 q+ u* Q
- HTTPUpload& upload = server.upload();' ~) d* h2 `2 S5 \& g% ~- k6 [' i
- if(upload.status == UPLOAD_FILE_START){
; ?$ r, R+ j; @2 P; [ - Serial.setDebugOutput(true);
% Q1 k6 n8 a; u6 _; K - Serial.printf("Update: %s\n", upload.filename.c_str());
$ z, ]& I1 p1 n1 f( o! Z! p% n - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 P; u7 b* m8 p" Z. d' X8 X - if(!Update.begin(maxSketchSpace)){
x* H7 H3 H. N2 v( k' W1 j. |( ^ - Update.printError(Serial);
% n/ [ u0 U- ^1 ] - }. Q% P1 u/ V( O$ Q0 Y2 E
- } else if(upload.status == UPLOAD_FILE_WRITE){
7 f8 D2 a& `+ S+ w7 A. a; | - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){) K/ R V* l; Q/ e6 j
- Update.printError(Serial);) w# }9 w' G5 i/ _+ N
- }" w1 O4 r3 B. x% y
- } else if(upload.status == UPLOAD_FILE_END){
& c+ }+ r$ s( p. o4 |6 v3 ]3 z! W - if(Update.end(true)){
& l; z% a. {6 e) G, N - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' C1 \% p* c4 e - } else {, H. x. q5 [! {3 ^. t
- Update.printError(Serial);% P3 g0 ^' s s( r6 v
- }
+ i$ |6 Q0 z( z - Serial.setDebugOutput(false);
& x4 {2 @/ `" _0 @- d" ^: | - }
- k* P. ^, l0 f2 I3 f i- B, p - yield();
/ h9 f5 u& h ~0 u# O7 U - });
1 E6 G' a4 t! K; @9 a1 R - ( u, W1 `0 Z/ x( Q5 x0 l
- digitalWrite(2,0); o4 T0 ?$ H+ P/ k& K& `6 D
- mainAction();
, W! x+ ]. ~7 R A8 P - if (digitalRead(0)){4 Z; s, a/ R0 ^# C o L; `
- ESP.deepSleep(0);0 ^# {& [) V* V8 U7 W% a! i
- } else {
% o$ ~* F4 f3 J) Q* Y - server.begin();
+ ?9 @2 ?4 q, {6 V. q4 p2 ^0 w - }: Y$ B8 U: j. a
- }1 y- V) b' d0 }% w
- void loop() {
. u9 P# l C, H* v9 N1 J9 D- D - server.handleClient(); B0 `' }6 x( a
- delay(1);9 U4 O: ^+ M* F8 N. _" K
- }4 b% z) D: R$ s2 w6 I- [
- String doGet(String url){
x3 y9 a; `- V0 ]6 } - if ((WiFiMulti.run() == WL_CONNECTED)) { j3 J0 _* {% c E0 L3 l9 q" c' |
- HTTPClient http;
# A# O( j4 {6 F. {9 O6 w - Serial.println("[HTTP] begin...");
- N; c% R7 h& h* ?, F- K1 Y6 d- R" r - if (url.startsWith("https")) {
' E) r+ u) ?6 `1 K2 {9 u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 D H/ |* y5 n$ I. I
- } else {
# ?, |9 f" G- I" {4 \: H) s - http.begin(url);6 N5 j( p# W! b( r1 b( @ x
- }+ F0 P9 [1 c/ e8 R$ B
- Serial.println("[HTTP] GET...");
8 c& k2 ^+ |, \! @0 f* ` - int httpCode = http.GET();
9 i; F6 A# K1 d - if (httpCode > 0) {
# c0 R' V" W9 f4 U: x - Serial.printf("[HTTP] code: %d\n", httpCode);, e$ |& a0 `& n I- g+ }4 L, ]# r
- if (httpCode == HTTP_CODE_OK) {3 H6 X1 q; ]1 x6 X& u
- String payload = http.getString();2 j8 s- y, J* z# X# v
- Serial.println(payload);; [+ K3 P" q2 M4 P
- Serial.print("\r\n");
* f, A0 p, u; l4 O4 f3 o - return payload;
8 U3 E: @6 a3 G3 g - }
* C7 m0 D0 _# N0 v* } - } else {$ ?& G3 Q& l+ Z% D) e2 L
- Serial.printf("[HTTP] GET... failed, error: %s\n",; n& K. f; n! u% r; w V, O
- http.errorToString(httpCode).c_str());, A9 q1 E$ i. j3 [
- }
9 D# W8 V1 Q$ ~. j. z - http.end();
/ Y) g7 A ^' K% R/ h( _$ M( j - return "";
9 |/ _7 G/ }0 K' @2 _ - }
Y" w9 |8 A# G' ` - }
2 H: J; l& z7 h - void mainAction() {2 E( L- e- r! m0 p1 Q
- // 发送请求/ n6 U8 c/ p4 K! i2 J7 K" A; c
- doGet("http://google.cn");
9 @. z6 M2 T* `9 T - }0 b, G8 i2 I0 ?/ b+ J' E
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