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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)
; C4 d1 @. N& x4 K3 @# V- #include <ESP8266HTTPClient.h>
: n- O5 X! S6 p! I [0 _! a - #include <ESP8266WiFi.h>; K7 n/ {" m) {/ w
- #include <ESP8266WiFiMulti.h>
/ u$ |+ |5 i% f9 D' u. o: u - #include <ESP8266WebServer.h>
Z8 ~3 y: G0 d6 ^$ B - #include <arduino.h>4 l, ^# E n, t. C- D/ S
- ESP8266WiFiMulti WiFiMulti;
' n5 }0 x# M3 A' t, e - ESP8266WebServer server(80);
4 B) g6 @% J7 q. G; C- p, u/ U - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 H$ B' |7 U; R# Z# |% I9 |8 s
- ADC_MODE(ADC_VCC);
# [7 A3 x7 a3 v7 H+ V; ? - void setup() {
/ q5 v* ^2 U& f* r, m - Serial.begin(115200);
$ @+ T+ h1 x* b. S" ^! n5 { - Serial.print("\r\n\n");
% r) [$ P" I+ y( B" N8 o - pinMode(2,OUTPUT);
# |5 D0 W+ u3 C; g, f4 C3 d - // WIFI3 Z5 f- v6 Z |2 c* L" P2 y
- WiFi.mode(WIFI_STA);$ l) |+ a6 n5 R9 y5 H$ u4 `. _
- WiFi.hostname("Sparkle");
" s/ |# K+ J8 d" P. P+ \; P - WiFiMulti.addAP("wifi ssid", "wifi password");8 E, G0 j8 R3 v' @* [, n
- int tryNum = 15;
6 M4 Z3 j) {& _: T2 E. k! r - Serial.print("Connect WiFi");
9 ~# `% } X( K$ ^& r6 }9 ^ - while (WiFiMulti.run() != WL_CONNECTED) {9 c3 k( k7 D' r% o" O+ {; Q
- digitalWrite(2,0);
7 k: h X k7 x+ g - delay(200);. V+ B: h; K4 y, i% [! |
- digitalWrite(2,1);+ A: S' q" o$ m+ J- V8 V1 A
- delay(300);* ?/ X# z0 |4 y5 P
- Serial.print(".");
8 S1 }" N' {1 N/ L - tryNum--;/ U0 d' [& E0 [6 D' f! u3 q
- if (tryNum == 0) {' S) n- d$ E, M# A! q- N* H
- // 1min
9 X; s( h: ~, L# K- e2 v3 h - // ESP.deepSleep(60e6);
* }7 H$ ]0 B3 X( M - ESP.deepSleep(0);: X$ ^4 d; B( D: @* Y n' Y
- }
4 @8 x/ s% O3 j. {3 H - }9 p0 c1 W' ]% A0 y
- Serial.print("\r\n");
/ p! B! C K0 Z! x; I9 M - digitalWrite(2,1);
* _% O: q4 E" b5 J0 I& V6 T& Y - Serial.print("IP address : ");
8 Z1 t) n& a1 q" [& g - Serial.println(WiFi.localIP());
% s5 n6 t2 m2 e7 {6 u; R - server.on("/", HTTP_GET, [](){
5 r7 b1 Q8 k, y, x! F - server.sendHeader("Connection", "close");8 l7 k, R* w* A% P/ m- e
- server.send(200, "text/html", serverIndex);
1 A, Z& S$ q; O, {+ ?8 } - });5 ], [& m1 h1 T! ?
- server.on("/update", HTTP_POST, [](){
2 E x. v# G+ a" f( }" _ - server.sendHeader("Connection", "close");! s6 e, |& \' ?; o6 E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");$ l- C5 v7 S6 }+ ^: ^6 _1 C
- ESP.restart();8 k P9 g. ?! L5 {" Q
- },[](){
9 f8 P# T4 [1 t: O. f4 ~0 ]1 L" } - HTTPUpload& upload = server.upload();
" s+ I6 q: J2 |( D - if(upload.status == UPLOAD_FILE_START){
0 D4 e: K: U6 x' o' w8 y: o# u - Serial.setDebugOutput(true);0 B& D3 F; Y7 R6 V# Z. ]# V
- Serial.printf("Update: %s\n", upload.filename.c_str()); ^$ M9 U1 ^+ L. ~2 F
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: Y1 E5 M+ t8 P6 d: b. j
- if(!Update.begin(maxSketchSpace)){ W0 p9 h7 U9 R4 i+ d
- Update.printError(Serial);- \3 W& A8 w0 N4 W5 Z3 y# N- J
- }1 a+ D& J6 y1 [9 N: l7 n
- } else if(upload.status == UPLOAD_FILE_WRITE){
' F; ?5 h+ K, W2 W# z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 ^! _, d. ?; s6 l9 F9 f1 |7 x
- Update.printError(Serial);
, C7 t, T- O# G; \ a - }
* h2 Y8 d9 o5 _# d3 C; p' j - } else if(upload.status == UPLOAD_FILE_END){9 m0 t8 M+ u$ u5 ^( n4 ]% [9 I
- if(Update.end(true)){/ M, U0 Y: l& F. _6 }3 E
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' I% y0 S Z8 x* E7 I' ?- u - } else {. S3 H/ a @! y+ R9 {
- Update.printError(Serial);
# [3 a9 B* c' c$ N5 q2 _. C I - }( w, }/ I. E9 N' I
- Serial.setDebugOutput(false);
6 T: ?* v1 f( P! ]. T+ X - }
, ^5 ^/ g+ z( ? R' e7 z7 E) j1 r - yield();4 t/ d5 x4 j6 Z, \4 G0 x
- });* O2 w; f' Z8 L4 \0 M" O
- & u& t' [; T3 q. Z
- digitalWrite(2,0);
! T, T* T1 P- x - mainAction();+ r- C& B4 ^9 |' ~: W
- if (digitalRead(0)){
) ~6 u& p* \4 V+ Z7 ? - ESP.deepSleep(0);
+ c( a( v) i& `, @% B# ]& \; | - } else {8 h( f* X4 S3 R$ |; `" `4 @5 t
- server.begin();- [: |2 } d# Q' C+ Q1 m- r4 i
- }6 K9 |3 S, b) X# \1 j
- }+ S" u- v5 [0 |' Z7 Z8 q7 B
- void loop() {' S' F0 m/ ]& C% m7 S
- server.handleClient();
M* I( K7 m1 m4 a8 p( z# q - delay(1);
5 B! \, Y: b! U) p" r - }
5 M, ~9 S; [( O2 C+ S. q! x - String doGet(String url){
) i0 W) E4 v" V6 G/ b - if ((WiFiMulti.run() == WL_CONNECTED)) {
' e2 N. u- Q) K# ~3 @ - HTTPClient http;
8 F- f9 B' A4 c. K/ D- m; g - Serial.println("[HTTP] begin...");% Z) s9 f9 E7 _" _) }( l3 F2 M; G
- if (url.startsWith("https")) {
" z7 Q' p" Z6 q9 I' w3 G+ k% ? - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& _, U A8 I3 K4 j$ X; e, E5 T - } else {. L5 K. V4 I& t4 b) v6 Z
- http.begin(url);. k, q; p) [+ j! O; l1 \5 l
- }9 a4 k4 W, c6 e+ o
- Serial.println("[HTTP] GET...");" h% D+ \/ S% S+ U
- int httpCode = http.GET();5 v- j% j4 o# Z1 U: _! ?7 S* ?7 z
- if (httpCode > 0) {
* m; t& M0 g, \3 l6 R) j9 s, s - Serial.printf("[HTTP] code: %d\n", httpCode);5 j( S% p6 A/ X; t& t, `' s; L, N$ A
- if (httpCode == HTTP_CODE_OK) {4 m8 J' ~# v5 i; `
- String payload = http.getString();
, I' {& [- ~- P( w6 x" g - Serial.println(payload);6 l, i) y. u* p4 P( a! X7 o0 E
- Serial.print("\r\n");/ F* `3 E( ]. \* n# ^: T3 ~3 p
- return payload;# d: G3 O) g# \- B# |: R% h
- }9 t/ w7 ]' C. n+ s0 ?
- } else {
5 s$ O3 _+ u9 u+ M4 U* I - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 R. P) N7 P( k% C% O' w - http.errorToString(httpCode).c_str());7 _% D+ }3 f8 F ?, g5 B
- }" O' I0 n& P( {5 [- q% k
- http.end();" J" v& e- |) ^3 `& w; A! G
- return "";
# M0 A, i* w% w, A4 J% O - }
: I+ _+ E: Q4 k( {0 z3 F - }
# F2 r/ \, n2 d- d8 b$ R: _ - void mainAction() {% h+ C) H$ u1 _8 g. Z; s4 u
- // 发送请求. r6 u) C- P" h4 W( P/ ]
- doGet("http://google.cn");
. s1 r8 q( f2 A6 C - }
W, `+ O. T& G3 Q. o6 Y6 n2 S
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