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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)
6 B( L: F4 V; @/ q- #include <ESP8266HTTPClient.h>
, ~# X: i7 V6 l& x: q! c s - #include <ESP8266WiFi.h>
& H" p2 \5 e- N l1 Q, ` - #include <ESP8266WiFiMulti.h>
5 |1 N3 W$ `; I7 \) f! w5 P- s - #include <ESP8266WebServer.h>
' C* S; F" l0 L9 G& ]$ g# z5 d - #include <arduino.h>0 ^, N- y% ]4 a0 V7 \' E
- ESP8266WiFiMulti WiFiMulti;& I! e2 M$ x$ C3 @
- ESP8266WebServer server(80);
' J$ i' d+ y( w0 V8 ?- k - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 n0 ~: ^+ k7 } q( z% M4 @
- ADC_MODE(ADC_VCC);
' F( w1 M* ]% v - void setup() {6 S" L1 G. [6 K3 W/ @$ Z
- Serial.begin(115200); ]7 f: Z: E' _! v! Y
- Serial.print("\r\n\n");
" k4 D& Y6 t" E" ^0 ?' ^! y - pinMode(2,OUTPUT);
, B8 |4 A1 V, u - // WIFI
* `; X; f& `0 A, B' C# N - WiFi.mode(WIFI_STA);% V& g5 F( X2 `# A
- WiFi.hostname("Sparkle"); v5 [5 z) G' M, W0 F2 g% }% r
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ M6 _0 ?) B1 j7 G0 M$ s8 b - int tryNum = 15;" d* p9 W+ w/ d# E
- Serial.print("Connect WiFi");5 D% A# U- ?2 r. J/ \5 l6 S
- while (WiFiMulti.run() != WL_CONNECTED) {
' F1 \8 D9 X( y+ }9 W1 c8 ^ - digitalWrite(2,0);: ^6 _* n. R! O
- delay(200);' y' T- {2 @1 L% F. ]
- digitalWrite(2,1);
8 H: _/ |4 W/ G/ ?# M8 p - delay(300);
; J w* P. M7 I2 G: g4 V+ h$ x - Serial.print(".");/ P+ G# q" g4 _9 p
- tryNum--;" Q6 i5 p1 o5 Y4 K
- if (tryNum == 0) {. [. }) J. T7 D6 e5 N7 P
- // 1min+ y7 v8 z2 d7 }6 J9 L2 k6 Z
- // ESP.deepSleep(60e6);4 h/ T! ~5 L: e& Q: B. v: F2 p
- ESP.deepSleep(0);
8 H9 ?# z& T/ d) j- @: b9 t- } - }
$ s$ M# [% h0 c; ?% E$ C2 S - }
5 S% n k5 d* L6 v# l' f. j - Serial.print("\r\n");1 ]' X$ O, S* v# J' l
- digitalWrite(2,1);
/ N ]+ |) V' z - Serial.print("IP address : ");
3 {4 p3 V& D4 @4 ]4 B* Y - Serial.println(WiFi.localIP());
0 d2 e$ p) n$ T - server.on("/", HTTP_GET, [](){
, ~. S [* t8 P" ?: r. [ - server.sendHeader("Connection", "close");+ M; t$ `; v. f3 s$ Z4 G
- server.send(200, "text/html", serverIndex);# C* m8 O( A" w
- });
1 ]7 g4 l- X- C) M, [5 P5 v/ K5 d - server.on("/update", HTTP_POST, [](){
7 s: x4 u0 D2 L$ S" u8 `6 K - server.sendHeader("Connection", "close");3 T/ W. E U# k- v( ?, x. L
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" G# z: Y4 H) \( i) O) _4 z - ESP.restart();) m0 o6 F& r0 N
- },[](){
; z, | a$ d6 |; |4 A$ v, C - HTTPUpload& upload = server.upload();; `5 ]; W2 ^% x
- if(upload.status == UPLOAD_FILE_START){# ^, p% d9 _2 x
- Serial.setDebugOutput(true);. W8 q# E( H' a/ l& @
- Serial.printf("Update: %s\n", upload.filename.c_str());
' Z# x% U% o& Y& t0 Z; \# x4 x% U - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. s- e F# o* D2 `3 j: D& q
- if(!Update.begin(maxSketchSpace)){. G5 V* t0 Y1 d c; ?* y
- Update.printError(Serial);3 } ^* `9 {: `
- } H5 Y( ]* w. T. Q
- } else if(upload.status == UPLOAD_FILE_WRITE){
5 K$ G5 j; t8 Q$ n - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" E$ T# L+ @3 G2 k - Update.printError(Serial);
7 M3 E( ?; g& d7 b* V0 D/ { - }9 z3 {5 S5 t' i2 N! x' Z" H$ S
- } else if(upload.status == UPLOAD_FILE_END){/ S7 y; L, k7 {- ~7 F& J" |' x% U
- if(Update.end(true)){$ g' q* ?" g$ q9 o' D. ]: |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);" ]1 e. B' D+ Z
- } else {. K6 f; }, Z+ S' ~; m |+ ?0 F4 y7 d
- Update.printError(Serial);
! j4 ]2 [; i- n$ q - }, p N& \$ O1 {7 Y
- Serial.setDebugOutput(false);
; ^7 C* _. K7 ?* F2 U& e. U' i) h& E) j - }4 v' c: f1 }. e7 z
- yield();8 x+ H0 e5 Z- U# e4 x M- e
- });5 ?1 G* T' M, o; G" @
- , p4 g7 N$ Z, T# B, C. Z. @
- digitalWrite(2,0); O: r+ D0 d2 T8 S Q/ @9 l- `
- mainAction();
3 ?3 M5 M. ]$ V( B+ i, U0 b% Q - if (digitalRead(0)){
+ y& W# N. T- O" E L - ESP.deepSleep(0);
( J/ a8 n9 y$ D8 f+ j: p: G - } else {7 w4 i& w6 n5 z, d6 m, u
- server.begin();
( Q" n' D8 E8 y5 M, y, Q - }
) U) j) S( @) S9 _3 l3 k$ Z; ]0 K& R - }
( b2 J9 w/ a1 U( {7 y# S% U - void loop() {" @$ c7 v) F& i- S$ {5 ?
- server.handleClient();" \2 B& B: n9 P4 }: }/ ?" c
- delay(1);
; g& ^' k& s: K8 v; K4 @ ^; t - }
; x% F0 e* b: \3 `& n/ U; L - String doGet(String url){
6 _+ M- U. f5 `9 b8 u' x. G/ Z% ` - if ((WiFiMulti.run() == WL_CONNECTED)) {
- }) X/ Z" Z$ M+ h - HTTPClient http;( e& d; P, u& u6 G
- Serial.println("[HTTP] begin...");. B) m! U6 s5 _
- if (url.startsWith("https")) {
: z% r: Q" U" D. |% l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
6 F1 a% m6 ]) ^, i; O, ~' r5 ]. g) t - } else {' r6 S+ R- h m8 D
- http.begin(url);6 T4 L# g* a1 t" S4 t0 i
- }( e% ?* D2 t1 B9 R8 @3 m4 H
- Serial.println("[HTTP] GET...");
- C. X7 C' J, y9 k' [# n - int httpCode = http.GET();4 B i( _) t+ g
- if (httpCode > 0) {
! a- ?4 r$ W- V) L. I: O - Serial.printf("[HTTP] code: %d\n", httpCode);# u: P% N" f/ c M. Y% C4 O
- if (httpCode == HTTP_CODE_OK) {
1 v0 d+ Y* W1 u: f' | - String payload = http.getString();1 O9 |+ q+ X7 o$ p
- Serial.println(payload);" K" U) a; w$ n' W9 r* ]
- Serial.print("\r\n");: g& \% r5 P; n
- return payload;; W; Y7 q+ J5 N" X' |$ h
- }
* F$ l1 X! Q. i4 I4 C - } else {0 m1 T2 g+ L2 \. O
- Serial.printf("[HTTP] GET... failed, error: %s\n",. X5 A. W# s' b/ c% [6 r& I
- http.errorToString(httpCode).c_str());1 j. I* A. h! M/ u$ M
- }
. L8 `) q/ b4 A' Y7 Z/ S - http.end();
$ y2 N+ R7 O I; C5 L$ [- _% x - return "";
- y# w' L3 u" y$ P/ @ - }
5 C8 ?4 q% P# s: U- j - }
; d& ?8 R* ?2 e# e' [4 T: c - void mainAction() {
5 o& C" I& T! q' B/ X+ c' ` - // 发送请求
7 N" k* W! {8 a, _+ I" [ - doGet("http://google.cn"); a' v9 b5 [* Q* L) z3 h+ Q
- }
4 Z! w+ X/ j: `0 u3 Z
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