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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)
4 Q: }9 _# V- \ {* E/ c- #include <ESP8266HTTPClient.h>
$ p8 [) Z& O- a& j+ P. ] - #include <ESP8266WiFi.h>% G' y% d7 l& a5 [6 [! q
- #include <ESP8266WiFiMulti.h>
6 b/ i- ]% n3 Y9 G4 n* c* l - #include <ESP8266WebServer.h>5 I, ]) l- ?0 U% C* \2 j
- #include <arduino.h>9 |. ]; z) i% O, Q0 w
- ESP8266WiFiMulti WiFiMulti;# V: w9 A/ T0 e! D6 |& x
- ESP8266WebServer server(80);
0 d) U6 M5 j' X: |- b* ^ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; N8 q$ B' y! z) k1 ~+ ]
- ADC_MODE(ADC_VCC);
' d. _$ c5 ]* a: M& Q - void setup() {
1 L, Q& A+ `! w# d - Serial.begin(115200);
6 R) Q- b7 ^3 V- v - Serial.print("\r\n\n");% \) Q0 ^: m( \, ^: {
- pinMode(2,OUTPUT);/ |6 d4 e% V( I7 i
- // WIFI; H" Q/ _7 ~- M* R, t) D% I
- WiFi.mode(WIFI_STA);
" }0 p, o, h& Y+ D! G - WiFi.hostname("Sparkle");
8 E# |8 c2 t( i - WiFiMulti.addAP("wifi ssid", "wifi password"); Q: r! u" ~5 ^& W$ f% [& t
- int tryNum = 15;% b' ]( w, t) c0 T% i
- Serial.print("Connect WiFi");9 j5 F; h7 u/ K0 e& y' B$ U
- while (WiFiMulti.run() != WL_CONNECTED) {
/ @, L7 q$ N% y; q2 s6 a - digitalWrite(2,0);
; k& p$ `( G% O5 y# j# n. `: F - delay(200);0 G8 y+ ]# R9 o4 w, }
- digitalWrite(2,1);* g. { W& @( A+ g# q
- delay(300);
$ d0 q- \ e8 k) t - Serial.print(".");
5 A/ V7 W, \2 o - tryNum--;
5 j* B: ?. b2 R6 T: F - if (tryNum == 0) {
1 x: D( r* n6 v: _% _ - // 1min
# ], p2 i4 M% D @$ h - // ESP.deepSleep(60e6); |( b& P- |& T$ d" r
- ESP.deepSleep(0);/ M9 o' M8 {" y$ M3 ]
- }# d n1 A& [, ^' A S7 p8 w5 c
- }, k. J: w& P3 l# [5 Y' P
- Serial.print("\r\n");
$ ], w4 J+ q0 _1 w& J - digitalWrite(2,1);
' U g: I4 G- ~( b" Z) E. b - Serial.print("IP address : ");
" g- c3 v6 k. [. J3 [) ^6 _ - Serial.println(WiFi.localIP());% g' T4 a- A( }& G3 k4 R/ H" W9 t+ q, x
- server.on("/", HTTP_GET, [](){
5 r" A8 s% [6 m2 b - server.sendHeader("Connection", "close");8 A7 g) V2 I. G/ P ]5 D3 d; S; I1 a
- server.send(200, "text/html", serverIndex);( C6 D% d) ~, l. O' u: w2 b
- });9 I; R, o* c" \: _8 f- ?* j }
- server.on("/update", HTTP_POST, [](){* e- R. b) K7 F7 U5 Q, f% j( K
- server.sendHeader("Connection", "close");1 M g6 ]; J& T" o4 a7 t _
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# J8 [; H: z+ v, ?) w
- ESP.restart();
0 a# F# i+ m! ~, l* L8 I6 C" Z: F1 Z - },[](){
; v1 Q! h; j2 c7 }8 ^ - HTTPUpload& upload = server.upload();
+ }4 S9 ~0 w$ F6 F" U, H9 i - if(upload.status == UPLOAD_FILE_START){
! W$ u# R5 n6 v9 { - Serial.setDebugOutput(true);
1 s+ O0 s* T* ~ W( ~- X - Serial.printf("Update: %s\n", upload.filename.c_str());4 K! k; \5 W! z5 R/ E: [( C' }
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 f1 t& w- j# ?! V; t* A8 }' C - if(!Update.begin(maxSketchSpace)){" e0 G/ E. H5 m: g# x5 t# u
- Update.printError(Serial);
. M/ Y1 n! U2 e G1 k - }# p4 N: j4 K$ @% m
- } else if(upload.status == UPLOAD_FILE_WRITE){
4 R u. p G( f - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ `% n/ v9 p7 N6 [5 q+ B
- Update.printError(Serial);5 Z; L$ e6 t' K5 Y* k A3 T3 T9 h& h
- }
- s2 U. X. D# m; ` - } else if(upload.status == UPLOAD_FILE_END){
7 x* p1 U2 p+ B. h - if(Update.end(true)){- R* M& J$ H5 w7 S% c4 v: j; N4 ?
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 M" T9 \ y3 ?: a0 f
- } else {
7 K# `' d1 A0 W6 s( g5 A - Update.printError(Serial);/ J+ X# x \( ` h1 p/ [9 P
- }
! V; j" X" E. w" m0 }8 ^ - Serial.setDebugOutput(false);
# Q/ T, \2 u) D! m5 C+ L4 a4 | - }
/ @# d0 ? p; H( x( D - yield();: J, W, u; n+ y$ a4 o3 s
- });8 `% r5 l* ^$ X3 ?4 `. o
- - X6 a) [, D/ ]
- digitalWrite(2,0);, M* Q8 e ]0 m" K. P4 e+ E
- mainAction();) r7 ]3 w" _# y" i0 ? p
- if (digitalRead(0)){7 v* {3 I4 ~6 X, W6 s5 Z
- ESP.deepSleep(0);' w0 F; |# y1 W& H6 Q" I
- } else {& @1 U; s: w: A' I1 x
- server.begin();
8 _ @, T7 k$ @ - }
! K$ a0 A. P3 k; x5 Z( J - }
3 x) X$ w1 Q+ U - void loop() {( g/ |" R& ^7 F6 M) ^6 S2 P; l) V
- server.handleClient();
2 D% d0 A9 R1 e0 d$ b- l2 t8 ] - delay(1);' V% k3 n- r8 Q& Z0 C
- }# I, u( T% C3 L: t0 d; L) S6 `( m
- String doGet(String url){$ ^; I3 u1 _1 k: p+ r% b7 g
- if ((WiFiMulti.run() == WL_CONNECTED)) {
- _* A W8 m- G% A - HTTPClient http;
! p0 F, G( b: x% S2 x" N9 Q5 D6 y - Serial.println("[HTTP] begin...");
) z5 l$ I0 V$ N+ E9 X - if (url.startsWith("https")) {
; ]- f% l: y; V; M6 v, u. [ g - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) b! t: j0 F( E% t" F* O R - } else {0 d8 @4 z5 Q8 t5 ^9 K+ N1 k9 c
- http.begin(url);. g, ^2 N. a4 D8 r9 G
- }8 }" W& j- M. v' o% L4 X& L& F8 @
- Serial.println("[HTTP] GET...");
( g7 O R" o% ^3 B; u* Z - int httpCode = http.GET();/ Y8 Q5 u1 h8 D+ o( E) O8 T# x
- if (httpCode > 0) {8 t5 C/ e% L) p* \. z9 _; ^
- Serial.printf("[HTTP] code: %d\n", httpCode);* f5 i6 H$ S# i- `3 [- r0 p+ c# m
- if (httpCode == HTTP_CODE_OK) {
+ p- M& L& T1 E. Q( S- p4 { - String payload = http.getString();# t/ s( x2 f1 H' o4 f, g
- Serial.println(payload);/ A9 n! x# O& B# S7 F; ^) C
- Serial.print("\r\n");2 E3 Z" W( b, R& [
- return payload;8 g4 F0 g6 x/ D
- }, x% z. `" V! @
- } else {
. }/ m8 e! n! V' U$ |$ |% q1 Q - Serial.printf("[HTTP] GET... failed, error: %s\n",
- A6 W+ A+ `5 h1 ] - http.errorToString(httpCode).c_str());2 a N4 h' O1 W" A7 w: M
- }
4 b* ]4 R; Q. z ^ - http.end();0 ]. `0 h' N8 ~9 _0 ^7 q* A
- return "";
0 T, [/ [+ o) M- h9 h3 v - }
! e* {0 H. y5 w1 s: c+ F - }
6 g/ p9 f& l. ^3 L' W1 Q* A& D - void mainAction() {6 X+ Z5 ]( k+ Z! W
- // 发送请求
% C' n9 J* ], i9 D3 N% R; w) W - doGet("http://google.cn");
d6 ]4 k- ^% U& {0 ] - }
. K, p6 O4 D3 ?
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