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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); j) `4 K! P0 s. v8 h
- #include <ESP8266HTTPClient.h>
( ?0 S9 p) I* h* N - #include <ESP8266WiFi.h> [& ~3 x. r6 t2 X
- #include <ESP8266WiFiMulti.h>, x2 H5 [" I6 j+ A
- #include <ESP8266WebServer.h>" g9 A; S7 L% O6 z% L1 A- \$ K
- #include <arduino.h>
- d- [( p) P& P0 r5 d - ESP8266WiFiMulti WiFiMulti;5 h! @$ [0 ^; g* ]
- ESP8266WebServer server(80);
/ q+ [7 r& u% b - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) W8 b+ W2 Q4 d# Z+ @2 `
- ADC_MODE(ADC_VCC);: c t( B" l' P3 l( |
- void setup() {
, `, X7 |- ]0 |: V' I - Serial.begin(115200);0 B) b2 K) _5 o8 }0 u- K4 f) |! e
- Serial.print("\r\n\n");
# H4 r# w) G/ `: |/ X! O - pinMode(2,OUTPUT);
* P' \7 Y: w0 y) }+ L - // WIFI0 |% J6 x1 w3 I0 Z2 P, b
- WiFi.mode(WIFI_STA);
" W: V5 |' v& y6 U' s8 X9 ` - WiFi.hostname("Sparkle");
% S* w( k$ j! Q' w7 H, H4 H - WiFiMulti.addAP("wifi ssid", "wifi password");$ D) F- ^# H% |
- int tryNum = 15;0 o6 S+ Z, ^. |+ I; v" Q: d1 s3 Y
- Serial.print("Connect WiFi");
( r- L$ s( _* |! _$ Z - while (WiFiMulti.run() != WL_CONNECTED) {( k% L2 |! n: x# G6 g% z# S' u
- digitalWrite(2,0);3 G" l% m, d7 P, o" ^6 {) F, Q+ n
- delay(200);4 b9 `1 Q* A! }1 ]' K
- digitalWrite(2,1);+ E! n, z# M8 r' c& |' b, v
- delay(300);
6 `; z9 K3 J7 J4 c5 b+ r8 e8 k - Serial.print(".");3 A) |# p, B6 N; E! ?/ E2 ?: P8 x# O
- tryNum--;) x) M& w5 P' {
- if (tryNum == 0) {
/ E& l# K7 E4 s6 T* K - // 1min
+ ^; r! W$ M8 m - // ESP.deepSleep(60e6);+ D5 v, ^! p4 w6 I, v
- ESP.deepSleep(0);# ~1 V `2 Q' z) R6 _, w/ W
- }
$ D2 p. ?5 B: D) _- d% Z$ P0 A7 U# x - }
+ g3 n. F$ b# } - Serial.print("\r\n");
8 e8 @% o8 j) R, K' Q - digitalWrite(2,1);8 W4 g1 T4 f4 d2 c _
- Serial.print("IP address : ");
1 ]( X. D9 m9 g9 C/ D# e* m - Serial.println(WiFi.localIP());
/ g3 n& S M; q - server.on("/", HTTP_GET, [](){& K9 m, k9 d! D6 l, x& U1 r5 p
- server.sendHeader("Connection", "close");) N" ^. B+ J% x+ l4 G+ I% R5 L
- server.send(200, "text/html", serverIndex);
2 ^& C+ x! i& @# k - });/ H J2 h1 X* I, P0 |
- server.on("/update", HTTP_POST, [](){
; ?8 _* T4 J+ f6 @+ W - server.sendHeader("Connection", "close");
4 I1 ^: M ^" r x8 ], a - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( n2 Z7 _% h, Z' [9 v6 ], }
- ESP.restart();
# J. I8 J+ o% ^6 I. t- c - },[](){5 ?) D$ c- _# O
- HTTPUpload& upload = server.upload();+ |2 P( f: `! ~. d4 s6 H
- if(upload.status == UPLOAD_FILE_START){
! F8 e* R! V8 s6 W2 Y - Serial.setDebugOutput(true);( z8 Q7 M$ a; z& ?: f
- Serial.printf("Update: %s\n", upload.filename.c_str());% y' \0 ]1 \. }* H: r
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& R& Y- F, c7 s9 P& v( M/ p# u2 W
- if(!Update.begin(maxSketchSpace)){
" D& J/ p, b* `# \" Q - Update.printError(Serial);
# t5 h9 p8 s6 Y' y2 R* Z - }. ^5 c/ z: Q( h1 j P
- } else if(upload.status == UPLOAD_FILE_WRITE){
) M* t2 ]3 q6 o' j2 ~ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 [0 L! E& v8 i3 @/ A - Update.printError(Serial);
) m, Q3 P" {3 C" k! u5 f) X - }9 {2 S$ I1 }) C' d0 n
- } else if(upload.status == UPLOAD_FILE_END){% |( h" b) c5 w5 L3 H' N
- if(Update.end(true)){
* ?* n/ u& c4 c5 u/ E Q. t$ C/ d - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, t; M" u) x t - } else {
5 E) {8 s$ R+ O$ z3 C+ _2 N+ c/ P - Update.printError(Serial);
, a( Q( m0 T1 S7 g7 e+ D - }1 W' V9 N) w3 `: a/ p, W& D" v( s
- Serial.setDebugOutput(false);& \7 D2 [# B/ H) n1 ] ?
- }- w3 {0 r- i' V ^7 u& b
- yield();
, D" l0 W8 m; q8 }* h7 T; w. T a5 I9 w - });+ J+ ]* I! U: ?+ Q, z$ {& Z' H: c
- - @$ j3 F- D9 `4 J1 S
- digitalWrite(2,0);5 J5 r+ A4 D2 u5 U! n5 c- F; C
- mainAction();
. b( {7 l0 _6 D1 v - if (digitalRead(0)){
W* ?; g" x' E7 u2 A - ESP.deepSleep(0);: d- e r0 o0 D, M3 n1 k9 e" o: b
- } else {
+ M" O" P2 @/ b# J7 O1 W" A - server.begin();; n' w0 x+ I+ @7 f
- }, @) H2 T! i' L2 q% u3 E3 ?% z0 K. H+ m
- }( Z- l& L7 `& K
- void loop() {
; e* {: i) R8 ]' l0 j) ?* D" H - server.handleClient();8 ]1 @; X; X4 x# h! F. _/ r) N3 n
- delay(1);
! V$ ^: t% S- p/ j - }" t I }1 ]: P/ G. b4 z' k- f
- String doGet(String url){
, [& D1 B% z! A, | - if ((WiFiMulti.run() == WL_CONNECTED)) {
$ v; l" \( c6 V$ y& G - HTTPClient http;
# `- M5 a5 J; | - Serial.println("[HTTP] begin...");
$ G! M9 l. W; L W" Y; Z" u7 W - if (url.startsWith("https")) {$ S7 o. u7 D+ _8 l
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
$ Q: ^0 F; ~4 M- t/ } - } else {
, k Q7 e) `% L - http.begin(url);
6 n; B' H& X7 V5 K5 c0 q: `, | - }' R* ^5 y( N3 B7 x: z- }6 }8 k
- Serial.println("[HTTP] GET...");, G1 X+ ~+ q/ e3 B, g6 H
- int httpCode = http.GET();# Y/ I. q/ R( S9 s
- if (httpCode > 0) {2 L+ O: W2 V2 w0 S0 T7 G+ `4 j
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 J. ^ Z% j, k1 c) S, a% A - if (httpCode == HTTP_CODE_OK) {4 h5 t! T0 N( j G# r, R& z L3 \
- String payload = http.getString();# \9 | W- f$ q5 P4 w
- Serial.println(payload);
" [" W. G( f; V - Serial.print("\r\n");
+ w& R0 x# Q% e% J& Y - return payload;
) X7 A b% d2 i2 e% G2 i. V - }
. y2 R; I+ `. @8 E0 s, c D - } else {
+ n( a% t" i3 _6 X$ N% B. z - Serial.printf("[HTTP] GET... failed, error: %s\n",8 D1 U9 c3 v4 G. u6 O N
- http.errorToString(httpCode).c_str());
: d& X$ d f- d - }6 a6 L: a" [( C
- http.end();# r& w$ k! y/ G { D% u% M! S* M
- return "";
) {: y6 u; |, n, i; G8 B0 G- c% N9 T - }
, K8 b( Q" A7 E - }
) _) R9 d; p9 i. {# o! { - void mainAction() {
$ p# S) n- P( j% j7 a8 w% | - // 发送请求
4 I, E# \; _) h. W. U* d - doGet("http://google.cn");
p6 h7 L0 S# d2 d. u9 L: e& b - }5 v) x+ g, P2 T& U0 B
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