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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)
' t7 i/ K2 T! r/ n- j+ Q- #include <ESP8266HTTPClient.h>
$ }: k" o; a' l, v - #include <ESP8266WiFi.h>
. y( k& K7 ^; \; z8 W$ S - #include <ESP8266WiFiMulti.h>- F o' K7 U- w: U
- #include <ESP8266WebServer.h>. b" f i1 n5 Z1 ~- T& F- s/ j
- #include <arduino.h>! P; h2 S: j* D
- ESP8266WiFiMulti WiFiMulti;! q( [8 E+ {8 K# b0 q i! O
- ESP8266WebServer server(80);8 d) f& k/ Z3 H
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, h4 k( _" k5 L6 P' g8 T
- ADC_MODE(ADC_VCC);
5 ~! U5 Q A' ?; k3 Y y - void setup() {) Q* }2 N* S. T* H6 D
- Serial.begin(115200);9 m# W6 Q, h' Q
- Serial.print("\r\n\n");% [/ E" p* E" _& U. K
- pinMode(2,OUTPUT);9 n i& S4 ~0 I7 R9 j: F
- // WIFI- w3 b9 N3 t8 R8 G
- WiFi.mode(WIFI_STA);
9 A! y" n/ T# n - WiFi.hostname("Sparkle");$ P* k0 U; E1 m: g3 `
- WiFiMulti.addAP("wifi ssid", "wifi password");* b- F1 Q( t K$ l% Q8 |( @, z
- int tryNum = 15;. Z8 d$ p/ F* s* G1 D$ v
- Serial.print("Connect WiFi");, {2 I$ t& h, A0 d9 P1 R+ {
- while (WiFiMulti.run() != WL_CONNECTED) {
2 W8 F- y6 l6 { I& E - digitalWrite(2,0);* c* {: _# z* p2 Z7 o
- delay(200);4 t* t/ M4 {- ]; e* U3 c, M
- digitalWrite(2,1);
% a- u5 O( N3 N' V3 \- T; s% N - delay(300); _ u! p# Q# S
- Serial.print(".");
) X/ X; Q2 [0 d% { - tryNum--;
( d; Q5 | H& e& S* J - if (tryNum == 0) {- P6 ^9 O" b' R! E" h, |1 e
- // 1min5 x6 l( G# g) S3 m2 D6 l
- // ESP.deepSleep(60e6);
. H/ o' P( G. ?6 Q5 k - ESP.deepSleep(0);9 x T e1 U& |. c0 s+ |2 l
- }( F+ ?* ] s) l3 g7 m2 B
- }
9 L9 T2 ^% Z# O+ y - Serial.print("\r\n");
/ k" {* _' a) F% X - digitalWrite(2,1);
; r% t: F7 x R# i& w - Serial.print("IP address : ");
3 [, `, o- ~. j$ s0 u - Serial.println(WiFi.localIP());
! s3 k9 w0 {' I+ x' a# _ - server.on("/", HTTP_GET, [](){9 Y8 G6 p5 u; _# J) L: B
- server.sendHeader("Connection", "close");
; h' t. o5 R! V2 G4 {: @$ @ - server.send(200, "text/html", serverIndex);6 i9 W+ @6 G! r/ b+ }8 a3 o
- });% q% I. `' ?1 p3 b8 `
- server.on("/update", HTTP_POST, [](){
N) ]# O, C3 o6 u2 t# [) ~- g - server.sendHeader("Connection", "close");( F/ \$ Z6 C, ?' K0 F& m
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. {, G& z' ^& c% D
- ESP.restart();
# y4 k' {! D: ?/ d+ o! a - },[](){( |3 @1 g, {0 Y8 m1 d' ]
- HTTPUpload& upload = server.upload();
, n+ x! Q1 O' y; c$ L0 A - if(upload.status == UPLOAD_FILE_START){; j) w8 Y* Q# S( H( H4 }& ], e
- Serial.setDebugOutput(true);
7 f' f- j; l1 _8 R1 ? - Serial.printf("Update: %s\n", upload.filename.c_str());
% N6 t3 l( C* B/ B6 W+ m, n( u - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ I1 l) P' y& n' S - if(!Update.begin(maxSketchSpace)){
/ C9 {' C# o" Z6 M G% _, y - Update.printError(Serial);% P" }: x6 @6 q, {$ O V; y0 t
- } B1 H* Z3 g7 Q0 y5 V
- } else if(upload.status == UPLOAD_FILE_WRITE){
4 J, L7 }5 }7 `1 d - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
! d+ {0 S8 z& z( A! R - Update.printError(Serial);$ U6 m7 R B0 n9 h/ J5 N: S
- }
% m1 s# v4 s' {, r - } else if(upload.status == UPLOAD_FILE_END){8 n3 D7 e" y0 S- B- [2 F8 Z
- if(Update.end(true)){; u% G( P- K* G4 i4 L/ M$ f
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 g% K8 E/ E3 G- |
- } else {
% y) U0 I+ p& s) Q% p# i - Update.printError(Serial);. }/ g- w4 [ B K
- }- f4 [+ F7 F# \+ [/ {/ P
- Serial.setDebugOutput(false);
0 Q D* L: ?- V- z6 u% k+ {4 V - }1 N/ e) E% a- @
- yield();
- u4 z$ X8 I( [5 Y5 G2 @ - });
/ N: U. I5 j/ K0 c/ R -
) R7 o4 p5 S: l1 O, v0 o - digitalWrite(2,0);/ [7 g. h: |- \. r
- mainAction();0 K8 T$ l5 L* r. q: x
- if (digitalRead(0)){+ n; y4 u8 m& z4 u( L& D+ L
- ESP.deepSleep(0);
8 p( N- [! ~ I( {$ W - } else {
0 P/ R1 m4 ~5 j- r4 [0 }9 V9 e1 [ - server.begin();4 A" n) C& G9 \- W9 j
- }
4 V! t. X+ `$ Y; b - }9 S) o2 A* x9 H$ M$ U
- void loop() {- p0 ` r' l+ ]& k% P9 c, e* |2 z
- server.handleClient();! U. _/ h7 O: t1 U+ C# E6 z1 z
- delay(1);4 [; c2 P* V( U% ]* B
- }0 A" s7 ?. s8 s% \
- String doGet(String url){
5 a/ y- D$ x* z/ `- O, ] - if ((WiFiMulti.run() == WL_CONNECTED)) {
3 G8 u/ d; {' M( _8 J$ @, w - HTTPClient http;' J! a+ l) p& s+ V9 V: C
- Serial.println("[HTTP] begin...");
( V' e& ~+ ]/ a5 V - if (url.startsWith("https")) {2 G' u0 w2 O( E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) `* r0 _+ M& [5 t7 `7 P: W1 H - } else {
# u; p$ T- [/ h1 |" [* z - http.begin(url);. u T) z7 n7 t' _0 p2 D( K" L3 [0 j! i
- }
! T" q8 t5 h8 c L; s - Serial.println("[HTTP] GET...");- j) v$ l+ ^' X- v( X H
- int httpCode = http.GET();* ^% B3 b7 O- m+ u8 S, V
- if (httpCode > 0) {
( Z' V% D& X6 n/ k* { - Serial.printf("[HTTP] code: %d\n", httpCode);
2 C; T- }& D" ^6 B - if (httpCode == HTTP_CODE_OK) {( m s2 o* X+ ]; ]9 g
- String payload = http.getString();) A- N* B+ |0 s0 s: [ [
- Serial.println(payload); X7 ~. s k! m
- Serial.print("\r\n");
" M" L) y5 \ y& F - return payload;; Q6 a6 r2 k4 Z2 s% u) e: `4 q+ ]" ^
- }$ l% e' h5 k) d n# C
- } else {# s( v" K' o- Y9 i! f. X
- Serial.printf("[HTTP] GET... failed, error: %s\n",
1 j. q, ?/ y/ V - http.errorToString(httpCode).c_str());
6 X" p% v# L# ? - }
7 x6 H9 T6 V" C' a - http.end(); e2 ?, s" F+ l# o1 A. j) Z; x4 B
- return "";
- b/ ]# J$ o* I; D - }
& R* T) u0 n5 v5 k' n - }6 u9 g5 i- J, P' O: p- T" Y
- void mainAction() {
+ n+ F5 \3 ~0 Z' r, p - // 发送请求
- {) Q$ W, u" K1 d. j# r - doGet("http://google.cn");" {9 M+ _, E/ h
- }
' |8 ~* }( u A7 w, W
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