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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)3 T. _5 c. T3 K1 M+ I
- #include <ESP8266HTTPClient.h>
6 r1 d- r$ ?, y3 N - #include <ESP8266WiFi.h>
8 l+ G9 C# [9 N5 t0 ] - #include <ESP8266WiFiMulti.h>: e- F) ]$ j, z( p. G" z) _
- #include <ESP8266WebServer.h>
4 m3 D G5 v4 J) H" V# \2 @% @; D - #include <arduino.h>
0 c9 j3 l7 z4 U7 v3 _8 }; ?6 x/ M - ESP8266WiFiMulti WiFiMulti;) V I2 ?8 r/ q. _8 D
- ESP8266WebServer server(80);
0 P/ H, [( h* _/ H* L5 V( g$ P - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 a+ T# S4 t3 J$ } A; P. b - ADC_MODE(ADC_VCC);
' v3 a E& {& J3 z l - void setup() {
( T& g( [: P2 F+ n2 _0 | - Serial.begin(115200);
% D1 n' K; i4 g0 {) ?; L - Serial.print("\r\n\n");
& o0 [, o6 Y( I, B& g - pinMode(2,OUTPUT);7 C% J2 j1 k2 z& M9 V7 O
- // WIFI
( d2 T; ^* K8 P- P/ C: G - WiFi.mode(WIFI_STA);% M1 n g! i- W9 m8 L
- WiFi.hostname("Sparkle");
0 Y! R; n" E4 G& Y# s - WiFiMulti.addAP("wifi ssid", "wifi password");
* o, F. [1 e" g' r - int tryNum = 15;
4 k: Z, f# D E2 S6 Z - Serial.print("Connect WiFi");
' \) t1 s+ o( C& [5 q1 L' ? - while (WiFiMulti.run() != WL_CONNECTED) {: ?* ^" o2 P( p3 }
- digitalWrite(2,0);6 C5 p' G: A/ p# S: E1 r
- delay(200);
( {" ^% ]2 D# o, K7 ^2 P( f" s) h - digitalWrite(2,1);
2 h# h' X# d( Z- v - delay(300);- l, F1 f9 p. j
- Serial.print(".");
9 V" z; r6 [0 m6 B: Q! m, t+ V1 Q - tryNum--;4 k X/ F% [! `) ^' F# l" g, v
- if (tryNum == 0) {" i. S0 f' A1 R! k. ^
- // 1min# M) o. [+ r) S, W% V
- // ESP.deepSleep(60e6);) e% U( c, `: o6 F. u
- ESP.deepSleep(0);& J' _2 t& h0 r. G) V
- }
6 L. a5 I0 F& y! T/ | - }
: J" v5 {: i) {! E0 g8 ? - Serial.print("\r\n");
2 \! ]' f( L6 C - digitalWrite(2,1);
5 j! s* _" r( |0 f, C. n, i2 |8 Q - Serial.print("IP address : ");9 D. d8 r f' _9 b+ P& C; a
- Serial.println(WiFi.localIP());
; v% Y9 y3 [6 u; ] - server.on("/", HTTP_GET, [](){
9 Z6 f( r+ q6 }8 ?. c - server.sendHeader("Connection", "close");6 `' ` G O' b' k+ T0 j3 z0 t
- server.send(200, "text/html", serverIndex);
$ n5 ^4 e) w& }& i; _% q) w% w; r* { - });1 m. G1 e) r# h3 y
- server.on("/update", HTTP_POST, [](){
5 N3 D; f: T' ^' D - server.sendHeader("Connection", "close");6 O4 E) `& Y! ~+ p( r0 o0 J
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 ~" | `1 ^2 i1 C) m8 Z& B# p
- ESP.restart();* G8 @/ O6 ]9 Y& S, O- p
- },[](){
9 O2 @0 D+ f& k: N - HTTPUpload& upload = server.upload();
7 H8 y9 r( ]4 P) E! Q# U; m( q# ` - if(upload.status == UPLOAD_FILE_START){/ G+ X) R! l0 P9 N8 B- U( |
- Serial.setDebugOutput(true);
' y3 \4 \6 |5 D6 h) b1 ^* `1 V - Serial.printf("Update: %s\n", upload.filename.c_str());
G' W* Y( w" }6 e5 p7 e - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 p3 d5 x$ F+ V4 x - if(!Update.begin(maxSketchSpace)){
( W0 {& t7 q9 s: F7 K4 M: l% [ - Update.printError(Serial);
5 [7 C! d" O- B- E; m - }
3 X2 o# W7 m, k2 i" q - } else if(upload.status == UPLOAD_FILE_WRITE){
! t7 Z2 }; _+ i# C1 j7 s - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 j2 T$ g0 U5 w) B0 R+ o' f" Q* h - Update.printError(Serial);) F# d0 t3 ^' E8 H7 H3 L. a
- }
( `; p' P- v x$ U. H8 w+ f8 u2 f6 f% c - } else if(upload.status == UPLOAD_FILE_END){# ^, o& T4 }- e' c9 @
- if(Update.end(true)){
! [ w4 d/ y+ o N0 j1 d - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! c7 ~+ D- v. @ - } else {& p9 N. \/ B9 [
- Update.printError(Serial);6 Y& s( A/ \/ l8 N+ N' @- ], z
- }/ O$ z# @" i& D( T8 Y
- Serial.setDebugOutput(false);8 A! B+ A8 B6 R2 D
- }. p* O. C5 O+ r
- yield();
- l- y) K: J/ S5 e - });
" b0 P4 j0 X- y$ s2 b2 w -
; d7 i3 L) E9 `3 R# E - digitalWrite(2,0);
7 A2 M; y3 ?" H0 {& F4 P5 s6 g1 Z - mainAction();
e0 j' _. a. @4 C8 i b Y - if (digitalRead(0)){
1 f6 @+ H; D) q0 Q# s - ESP.deepSleep(0);4 i- v* C6 U2 a4 ]6 U5 i
- } else {9 ^6 j2 d" i9 i+ s/ w6 Y+ d
- server.begin();( G; }' J- X, t: \! g0 j
- }+ S3 m! f. { p; x; k
- }
, d4 P. M+ O3 p$ K. Q- K+ \# \& f - void loop() {8 `0 |- Z; ~ l' e
- server.handleClient();
: V- j- x6 h6 w8 X - delay(1);
* N7 ?8 f1 a5 O1 D; B( { - }
, f9 B% E, `2 C: w3 Z% D - String doGet(String url){4 ]" N( Z7 g8 v: {7 I2 @% E+ M
- if ((WiFiMulti.run() == WL_CONNECTED)) {( `# S7 B! a! _! R1 r
- HTTPClient http;
( M/ E9 V, ?+ N; v) \7 ]1 M - Serial.println("[HTTP] begin...");$ s0 i0 Z# A1 A1 n/ }
- if (url.startsWith("https")) {
h o- H0 X' E - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 _6 @; Z% r0 f# U/ Q' n! }
- } else {# b! F, h0 f- R$ w. m7 h
- http.begin(url);8 H6 a$ A- o) [4 P1 ?7 Y3 D
- }
y5 y" h2 i' I t - Serial.println("[HTTP] GET...");$ G* e5 e2 r3 |3 l$ P- R7 v3 w7 Y7 j* u
- int httpCode = http.GET();
& o! t; R ~4 C1 P( T# ]( E" `7 \ - if (httpCode > 0) {
$ l* ] y8 V s - Serial.printf("[HTTP] code: %d\n", httpCode);
1 L! c# o5 y2 q' ` - if (httpCode == HTTP_CODE_OK) {
- ~" M- e( H- `; g - String payload = http.getString();
8 ^# L r$ z& i0 n1 z0 ]* H# W - Serial.println(payload);" `& s5 \0 B2 h" `( J; ^) g
- Serial.print("\r\n");6 c n' @6 Y& i
- return payload;2 {, T. G {0 ?0 G) @9 l+ o- [4 v
- }
- F& _: |/ N& Y0 b: j - } else {
, r. W2 n3 f! { - Serial.printf("[HTTP] GET... failed, error: %s\n",
. D! r; t4 `' P/ G. ^" O! k! b - http.errorToString(httpCode).c_str());
: O' ? J2 \5 [ - }3 T+ z2 {) ?4 B1 j2 V* Q
- http.end();
2 O# O/ q8 S8 L; n0 u - return "";! W' H0 u( S' f( H4 |% v; I& \3 U
- }/ B6 S1 b( M V
- }7 u/ d3 R& X' z) x
- void mainAction() {
3 n% i$ Z6 q0 j1 _' X, j, p8 B* U - // 发送请求9 s8 E5 O- q0 n! F
- doGet("http://google.cn");% l9 v, l& k, d% b: F) V$ \
- }
8 C6 `. L9 f/ c9 O2 L+ K
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