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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)+ `0 x" S1 O( S# p! x
- #include <ESP8266HTTPClient.h>% ~! w* s# p. Y1 l$ y8 F* \
- #include <ESP8266WiFi.h> u) C5 z- I0 ^% `7 D
- #include <ESP8266WiFiMulti.h>
' m+ w8 {3 J# @; { - #include <ESP8266WebServer.h>
) D) \" K9 H* H6 V" e - #include <arduino.h>, y7 ]& h C7 S/ h9 O( Q
- ESP8266WiFiMulti WiFiMulti;
1 l( u9 a% c8 Q+ A7 D - ESP8266WebServer server(80);
" L! x: a# D' k7 p - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
& l! o- N2 v' h; A" ^# H - ADC_MODE(ADC_VCC);
: c- m% R+ B/ ]: a - void setup() {3 ~, {- C1 j( X7 O ?5 t$ u0 b
- Serial.begin(115200);6 |; L! w! }5 m& l" Q+ p
- Serial.print("\r\n\n");5 O# S) |% L0 c9 G
- pinMode(2,OUTPUT);- S0 W( z. {/ V( o
- // WIFI- K( f8 a2 i I$ B* @
- WiFi.mode(WIFI_STA);
# s; S3 y$ u8 r- y( e/ B0 x$ Y - WiFi.hostname("Sparkle"); w. A9 f6 s- t; K; m
- WiFiMulti.addAP("wifi ssid", "wifi password");
" l% i' J; V0 Z; e, Z8 [" g - int tryNum = 15; Z, B3 ^- h( ^ ?8 Q
- Serial.print("Connect WiFi");0 {; m; M( a1 w' I9 y; w, h
- while (WiFiMulti.run() != WL_CONNECTED) {/ U1 b; C, d* w, e# ~
- digitalWrite(2,0);
, O" M/ m, y# I3 F! n. M8 M+ Y, V - delay(200);
' C+ u: g" Y! D; S, K0 e - digitalWrite(2,1);
' D2 {1 w4 y; S% S. r - delay(300);
& t3 [8 k/ K; N2 y' g8 z4 z7 B: K - Serial.print(".");
7 |+ _" o) ^5 z W# l - tryNum--;9 ?$ `& j) Y5 J$ _/ H. j& i! J+ ]
- if (tryNum == 0) {1 u! w3 l9 |3 V* p
- // 1min; B. S" b4 U# C. T& i
- // ESP.deepSleep(60e6);+ Q, \5 r! h$ u" @
- ESP.deepSleep(0);
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- }2 v2 g( d- d- c" j9 K/ d9 p
- Serial.print("\r\n");
8 B8 q1 ]- g& j. d - digitalWrite(2,1);3 J0 G6 {1 S" {! X* H
- Serial.print("IP address : ");; D8 [9 O$ d. R6 s1 m
- Serial.println(WiFi.localIP());4 `% V3 F$ m8 s# C* v
- server.on("/", HTTP_GET, [](){4 J' p3 o) Y( | h8 ]/ p
- server.sendHeader("Connection", "close");. Z( P1 U7 b4 N. X6 I
- server.send(200, "text/html", serverIndex);
8 c% ]0 Q) @6 Z: E - });+ m4 W6 _/ j, i1 {
- server.on("/update", HTTP_POST, [](){/ J$ e8 u( \" `0 {, }* r
- server.sendHeader("Connection", "close");
" ^9 U9 b9 X; [6 {- Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) Z! K+ q8 I2 j x$ L" M4 \. L
- ESP.restart();
- X1 d# U" u( c - },[](){4 w3 o" z) @3 ^% |# \2 [" f
- HTTPUpload& upload = server.upload();, S9 ]9 z O( r6 `* T& B5 I
- if(upload.status == UPLOAD_FILE_START){
7 G% s* }. Z5 H) @1 Z0 ]/ D1 _ - Serial.setDebugOutput(true);
+ F# @( _5 Y( p+ q$ p" O. G# E - Serial.printf("Update: %s\n", upload.filename.c_str());2 U) k% f N1 d: q% j4 d6 T
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;) v3 P% Y( G( S. L2 t) |
- if(!Update.begin(maxSketchSpace)){: ?$ m9 B5 }0 Y% \- x8 `' e( C
- Update.printError(Serial);
- T4 X9 B( o& b3 z7 q! X5 S. E - }
, `. Q0 I' b/ i$ ^ - } else if(upload.status == UPLOAD_FILE_WRITE){
, U6 D) L( t" e - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 w6 Y5 H) V0 L; [1 w
- Update.printError(Serial);
) r/ |4 X5 @# E - }5 @ j J' H. L0 {# @: c7 O+ @. b
- } else if(upload.status == UPLOAD_FILE_END){
# g: e# v; `+ ~$ A - if(Update.end(true)){, V( K+ n' \: W0 o- D
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) x! m1 _% R! W% ]! A3 P _ - } else {( W% w( d/ l; c3 G+ A
- Update.printError(Serial);
8 ^( i" x$ k, e' @# D& b - }$ N, S3 }/ O. J
- Serial.setDebugOutput(false);
- A: w$ |, X( M - }
# |6 ]7 w3 @; f- t3 ~ - yield();4 w# Y) n# ~) ^4 m% r3 m! q J
- });
- ]& ]* B W! E6 e - , |7 B, n) X7 t( ~4 V. ~
- digitalWrite(2,0);2 z5 R0 i# D' g, `: i* O( k; a
- mainAction();
, j6 }& U8 `' H* E+ F - if (digitalRead(0)){$ u5 A$ Q6 ^8 N1 F3 w- {
- ESP.deepSleep(0);4 A& V, C3 e( j3 p& u/ E' l
- } else {/ D1 T- v3 R$ }0 R* \' S. R+ i
- server.begin();' @$ J4 \8 Q1 z, j7 \' A7 \' B
- }
3 K" m: e& a3 g- N2 {5 I* n - }* [- v- `( q9 l' w: I' ~+ o0 l9 ~
- void loop() {/ a9 ?9 ^2 F+ Q( p3 k
- server.handleClient();0 a) _$ u+ Y0 A" c3 S: [, J
- delay(1);
3 I3 q/ q# U2 s - }
5 q; R6 o. [3 u7 ] - String doGet(String url){% Y8 d+ {# K3 S0 L
- if ((WiFiMulti.run() == WL_CONNECTED)) {
- N7 |; Q: U' S' ~ [! B8 l$ P - HTTPClient http;6 f) X' f" P: X. K( c. C
- Serial.println("[HTTP] begin...");% X5 y5 Z5 u( q. E! z0 Y- a3 S
- if (url.startsWith("https")) {
+ Q. J! I/ ~6 Z' u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& {6 t7 {8 e" o" \6 {$ W. x
- } else {4 z L# d! ?+ u5 x4 K4 J6 G" ?
- http.begin(url);
, } u, Z; n2 I8 {1 M - }# ]& n* X/ Z. ~8 i! M
- Serial.println("[HTTP] GET..."); L0 R$ @- l& L* Z4 m4 q; H
- int httpCode = http.GET();2 h- d8 @; i7 }! E T
- if (httpCode > 0) { ]# ?- ]# H% s" o1 ~, g! k! A
- Serial.printf("[HTTP] code: %d\n", httpCode);+ @4 w# b! K1 r
- if (httpCode == HTTP_CODE_OK) {
2 ]; \ Q- }, t% F - String payload = http.getString();
+ p- b5 I3 e1 k - Serial.println(payload);
- t2 f5 B) V' D) Q3 x* f - Serial.print("\r\n");4 Y; A* ^, c. a( L# _9 N' `
- return payload;
. |# v7 L3 v4 j2 _" ? - }
9 P, O" a, u, j& w - } else {
' O" O: g5 ~) B+ S) u8 o - Serial.printf("[HTTP] GET... failed, error: %s\n",! C Y, q, c8 ~% s. V" E0 m9 E
- http.errorToString(httpCode).c_str());
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- http.end();
* ~+ b/ T+ N# o* ]# Q8 P! s: q - return "";
6 ~7 \/ }0 [7 [ - }( j8 M2 l; p; ?
- }
1 A" T7 I' \8 m$ {1 M% Y a - void mainAction() {. S: X9 E" g. C5 I) R0 w, `
- // 发送请求9 H3 p p* J1 t8 H6 M5 B! Q5 E! I! T
- doGet("http://google.cn");
& D4 `! A5 M5 _ - }
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