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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)
* ?! \; N/ N8 B& a- #include <ESP8266HTTPClient.h>
. g+ Q6 H# X8 Y6 R6 {4 R% O8 X - #include <ESP8266WiFi.h>
; h. Y6 P7 j0 p& } F - #include <ESP8266WiFiMulti.h>* D" B# _8 {" r6 X* l- ^+ U) `
- #include <ESP8266WebServer.h>
2 T, S' x1 @2 @- ~/ M4 Q0 e - #include <arduino.h>
! B8 Q9 u+ }5 D - ESP8266WiFiMulti WiFiMulti;
' F0 ?. u+ C, W- a% i' k* [ - ESP8266WebServer server(80);6 B6 r* p' v/ u) T+ Q& Y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";$ H4 ^: j/ e9 b1 i
- ADC_MODE(ADC_VCC);
1 W/ @+ T! A2 Y8 n3 [2 \ - void setup() {
7 [1 ^$ J% _ S - Serial.begin(115200);$ s! r! U) y9 X6 I# M4 D7 b( d" w
- Serial.print("\r\n\n");
- Y" P9 S0 W, g2 K - pinMode(2,OUTPUT);0 F/ T1 N, ^. f
- // WIFI
* Q$ S- W! H0 {; K% }5 w - WiFi.mode(WIFI_STA);
% ]( @: g9 w$ e, s% `2 i - WiFi.hostname("Sparkle");2 y1 k- j1 f) R9 X9 @1 V
- WiFiMulti.addAP("wifi ssid", "wifi password");0 o2 ^. E# Z, W, q5 }4 W
- int tryNum = 15;
. ]; j) L1 Q" y+ P - Serial.print("Connect WiFi");* c$ g0 f% m! k. i
- while (WiFiMulti.run() != WL_CONNECTED) {
; h, l* [. m8 P - digitalWrite(2,0);
; p, H9 z, d6 x - delay(200);! X! w6 s* j# d9 y' F& M7 f
- digitalWrite(2,1);
" f5 Y1 H4 I- u$ v) [! K - delay(300);
+ q' g- D3 Z. h- ?5 w. C9 W3 ~ - Serial.print(".");/ W2 D, e" o! {5 p5 Z! e( B
- tryNum--;
+ F1 V' x7 |/ P% |! o& C; A% A - if (tryNum == 0) {
8 [6 A6 P; J, l) b. B9 t. P p - // 1min
1 }6 X1 n: }3 y7 ]4 f# [ - // ESP.deepSleep(60e6);
$ ~" N! @8 Z+ ]2 |6 l8 y& w - ESP.deepSleep(0);/ y+ ?1 Y1 G- t+ c/ W' c7 g
- }- h8 A3 b) c' m# A' d8 ?$ P' s3 M
- }
( C5 ?0 k2 n/ G6 N- m+ \: D5 L - Serial.print("\r\n");
5 z& t+ }4 a8 y3 L - digitalWrite(2,1);* w8 ~3 a) Q* Z- s: k6 s& o' X( a" R
- Serial.print("IP address : ");
+ p$ f; A0 ~ X - Serial.println(WiFi.localIP());! o% I; S0 g- N- F8 `8 B
- server.on("/", HTTP_GET, [](){4 }# w* m: |( _) G
- server.sendHeader("Connection", "close");
" Z5 V4 C! P; _. Q& `; t& @$ Q - server.send(200, "text/html", serverIndex);' Q+ }# {6 \+ B1 F3 {0 a
- });
- f1 H8 z% Z9 N$ J) X# ^ - server.on("/update", HTTP_POST, [](){
9 M* D+ M% Z* Y7 Y - server.sendHeader("Connection", "close");! b; I4 F0 k- t0 t8 p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. f) ]7 ]7 n0 B' \; o3 U - ESP.restart();
" a6 S6 }+ l/ L% V5 N - },[](){
- t) _. q6 i; f. b( Y: d1 t - HTTPUpload& upload = server.upload();! ]- X7 ?4 h7 [! C7 Y
- if(upload.status == UPLOAD_FILE_START){; x3 e2 x k( f
- Serial.setDebugOutput(true);/ Q0 r" \* A. }9 q0 A7 C) a
- Serial.printf("Update: %s\n", upload.filename.c_str());9 ?9 u- d3 P* A$ P3 i8 ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% H1 d2 v& y+ Q* v: g( X0 w - if(!Update.begin(maxSketchSpace)){& z( ?) f _8 } |2 a
- Update.printError(Serial);
. H6 r9 K: c a3 o% g* A - }+ Q: g3 Y2 W, {. o
- } else if(upload.status == UPLOAD_FILE_WRITE){
; Y6 i0 ^% g7 C& P, k- n# p - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 P2 R! M& h2 c7 c1 Z- R1 g K" P
- Update.printError(Serial);/ t. d* U- i5 G$ s$ T0 V# S* O5 Y
- }
* D8 _6 d: m, V* J' W; D( { - } else if(upload.status == UPLOAD_FILE_END){
9 e* k1 H" q* `* D/ m9 R) d/ |( N - if(Update.end(true)){
. F. W6 n) [! A - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);- S0 q! ]) i% k" H* {
- } else {
+ B2 b6 {! K! T* l2 ]& f - Update.printError(Serial);
* [/ @" S+ N8 R( A0 m - }0 |2 O, L; y& A6 p8 U
- Serial.setDebugOutput(false);
3 R+ `, _2 {9 M* V- e- ^: G - }
' z" u% h/ Q7 d) r - yield();
4 u; H1 H$ @' U, n5 U - });
: m ]9 Q/ U( M& a -
8 M- P1 S3 e, s: }- g g M2 f; W2 F - digitalWrite(2,0);# n) U3 P& e/ q. t2 V- s3 }- j
- mainAction();
- a5 @" T0 J8 a( D - if (digitalRead(0)){
4 ]2 p+ a; u% ~% A C5 m0 v - ESP.deepSleep(0);5 ]: h7 O9 d: X5 V
- } else {, {# P* i! I$ W+ \
- server.begin();
' Y6 M5 b7 M9 n$ w) e4 }9 z0 l - }9 L- E- j& t+ r9 \, e$ R
- }9 T$ N4 B$ m. h6 x. n3 ]7 Q
- void loop() {1 v( j5 E4 _9 M& Y' [
- server.handleClient();
% K0 ?9 r+ p+ P9 s! n, _ - delay(1);% ]1 A& t/ q! D; x& u
- }
1 z. |( `- ^% U2 \1 D) _/ S - String doGet(String url){( p1 w2 L) Y( l5 u0 }% O
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ z. X* r# M3 W, j6 u* H3 ] - HTTPClient http;0 n% y8 f6 Y J m$ b" Y& w
- Serial.println("[HTTP] begin...");: M- L t6 [& ^4 r
- if (url.startsWith("https")) {9 t' k4 s, ?1 K# [- c
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
* }5 s- b7 T# t. }5 S+ i) l - } else {
* U! v$ ^& H. ^0 \ } - http.begin(url);5 i$ y' ^* }) J+ Z* O! t
- }5 r$ |* z- a* u) P
- Serial.println("[HTTP] GET...");
+ G7 Z, h7 F2 k X: B - int httpCode = http.GET();
& {+ D& h5 _. }2 r! | - if (httpCode > 0) {6 }1 p \3 d2 [
- Serial.printf("[HTTP] code: %d\n", httpCode);
0 d- g6 K0 d! W2 O( H f3 k/ O - if (httpCode == HTTP_CODE_OK) {, [, T3 z7 s p+ ?
- String payload = http.getString();' Z: n# N8 ^5 A
- Serial.println(payload);
, K" p( r7 Z G9 S4 g5 _5 V - Serial.print("\r\n");
+ _+ M0 O3 m! ^* j! z - return payload;
2 [, h' n8 P' O6 N - }
! D1 a3 O$ @ v5 o Z - } else {
; }4 j9 i0 D) c3 M; ? - Serial.printf("[HTTP] GET... failed, error: %s\n",4 F4 Y: b- g4 p, l9 f( y
- http.errorToString(httpCode).c_str());
7 Y; f# L$ z& K1 e - }
; g; G# Y, l5 O1 R( s - http.end();7 M- B8 [( @1 ]8 O
- return "";- \# X& X' l% i5 ~ j1 [
- }! l7 W9 _" Q# [$ D
- }$ \; T: k: h8 C( [; W' N* H" ^
- void mainAction() {
' o! a$ U* U0 F4 f - // 发送请求, E4 [* O0 y0 r7 ], x7 W9 h+ ~& U
- doGet("http://google.cn");
0 D% Q+ Y$ B; U M - }
7 T7 ?* n: p6 F' D, t+ R; @
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