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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)2 d6 K. v9 C1 | k
- #include <ESP8266HTTPClient.h>* s k. {/ s8 L# I
- #include <ESP8266WiFi.h>
|: x0 {: W! f0 X; z! ~; H - #include <ESP8266WiFiMulti.h>
F) c/ @; l8 e$ v - #include <ESP8266WebServer.h>
* O" ~* M5 U" B - #include <arduino.h>0 n% _. {1 P( D* w' e6 I. B1 W
- ESP8266WiFiMulti WiFiMulti; b8 k. J8 [* a4 p
- ESP8266WebServer server(80);! o$ n8 ], n! x+ h; B
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; B! O, ?# g( G }( H
- ADC_MODE(ADC_VCC);: I1 x( d H) P5 ?
- void setup() {8 r1 }( M" [9 {- k& \, r7 ~1 L0 R1 ]
- Serial.begin(115200);
r- H0 C0 m+ L T/ V; Q - Serial.print("\r\n\n");$ u \1 ?& S* V+ k* X
- pinMode(2,OUTPUT);, ~+ x% G2 B1 `
- // WIFI, ^7 F: Y3 r4 ~' b+ Y* l
- WiFi.mode(WIFI_STA);" X h* B2 w' ~! M& O2 f8 o
- WiFi.hostname("Sparkle");9 b: a) Y' H* M+ N
- WiFiMulti.addAP("wifi ssid", "wifi password");
0 ?6 [+ U4 x' i( i* { O - int tryNum = 15;% c' F/ K2 D- X3 z
- Serial.print("Connect WiFi"); S/ r% r6 V+ X
- while (WiFiMulti.run() != WL_CONNECTED) {2 M1 K: }9 I; B/ I g T/ ]
- digitalWrite(2,0);
9 {. c i" r- @ - delay(200);
7 @ v3 O) B: l) [# g( { - digitalWrite(2,1);
7 A2 e" S1 C) m7 K& c! h - delay(300);
; L: y; i2 ]4 w) }" H1 G7 B - Serial.print(".");2 B' o! F& @, w- D; o: `! y
- tryNum--;% g( n3 u G! [8 i
- if (tryNum == 0) {
; F2 a7 T* W7 k' ]/ X - // 1min
! z' w: ]6 E) q1 e/ C% X - // ESP.deepSleep(60e6);
2 Z! q( a# \, F2 V4 r - ESP.deepSleep(0);
' L$ c5 U! Z% ]5 @ - }
0 Z' E) g. N- a% p - }- p& z+ v% |% A2 n) P. d. Y9 ~$ ?
- Serial.print("\r\n");
7 l$ B4 j, Y: h+ X# l1 f; F3 u - digitalWrite(2,1);& H" x2 l( y( q) q7 D
- Serial.print("IP address : ");) f+ _3 \6 [0 \ G, ?- G
- Serial.println(WiFi.localIP());/ s" F. _- m: ~1 P# A! P @
- server.on("/", HTTP_GET, [](){( [# }. V3 k/ U, e7 K; P6 z, J+ A
- server.sendHeader("Connection", "close");
) s% R( V9 B) n4 ^; b* | - server.send(200, "text/html", serverIndex);
, G! l. R5 {% K7 x( H; m - });
9 f: G* B, u% A+ s3 Z2 p2 e+ w - server.on("/update", HTTP_POST, [](){7 X9 X2 k1 q0 U) t+ s
- server.sendHeader("Connection", "close");
" J5 A1 V' i6 @0 _! {% v4 K - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 C/ G7 }/ o) Q9 x8 S - ESP.restart();% ^! ~) Y$ h2 u3 [ n/ `
- },[](){
8 q. ?% f8 ~. t% @: N - HTTPUpload& upload = server.upload();4 f' E/ z F0 K5 l& G. U
- if(upload.status == UPLOAD_FILE_START){
( n" j( o( n0 o( w: C0 F - Serial.setDebugOutput(true);
, z; W4 v: h! _: g5 { - Serial.printf("Update: %s\n", upload.filename.c_str());
& |8 M# V9 C' L - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. F# r& f1 V' ?1 q) n' q2 M5 Z
- if(!Update.begin(maxSketchSpace)){
4 f& G0 l9 o) r+ b4 |& u$ l - Update.printError(Serial);
, k& w( ]4 _' V - }
. F7 v) I5 ?/ A" P+ p/ G* ^* l+ f - } else if(upload.status == UPLOAD_FILE_WRITE){1 b4 Y& H* F; E$ p8 Y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 p7 l1 y' X+ ~, \3 o
- Update.printError(Serial);1 |, Z3 I2 L Q+ n. ?% \; c3 b
- }; V- `5 R& p7 G+ x, a: E& L
- } else if(upload.status == UPLOAD_FILE_END){
5 g: L0 w5 `6 }$ N( k. i2 h - if(Update.end(true)){) i7 R7 u% e/ I5 ?8 s- o8 E# \1 S: E$ C
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);& D1 w9 M8 t! v& | c* A3 ^) g
- } else { _% p6 ]0 {5 b9 L# W( J: \
- Update.printError(Serial);# ?9 r( J- f. q1 m0 }9 o- Q9 a
- }
% F1 k& ^% B1 o3 S+ t. x7 I - Serial.setDebugOutput(false);
% M+ K- ^: Y: U! l- V5 v; | - }1 ^. O! C, i4 _
- yield();
7 q; g; I' f Y4 H" q - });$ u; ?+ n+ F/ u2 A+ K
- " j+ a* \6 W% q) d! r
- digitalWrite(2,0);
+ _8 t, R) a# ~# J6 E0 d - mainAction();
% E9 P5 E' d" [, M2 O - if (digitalRead(0)){
+ `! _7 c# x5 ]3 g - ESP.deepSleep(0);- R0 e1 q E4 z" A% ]0 o
- } else {
/ G9 {! ` ?; V) t8 B# I2 u - server.begin();3 z& s8 m, G+ D+ ]; |
- }1 ^) O. B; i1 {
- }# H' [( j" p; b$ O4 D
- void loop() {' K3 q: W% H" p6 p7 ~- u- Y
- server.handleClient();2 i+ F5 i$ K6 X+ e. _9 ~
- delay(1);" w" H# v9 p: v+ k m9 q ~
- }
- C7 g1 Z2 W. P8 g6 v* m - String doGet(String url){
; I6 M! N3 j. R - if ((WiFiMulti.run() == WL_CONNECTED)) {. M0 _1 j3 C4 G9 S" P" X
- HTTPClient http;
7 H, H2 U6 |! O2 ]3 r2 ` - Serial.println("[HTTP] begin...");2 q3 j) B# }" _9 Q7 }$ n
- if (url.startsWith("https")) {3 b2 f7 ?: `; o" o2 W0 u' s
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
8 q2 Y3 S" A4 C+ M6 O2 V" t - } else {3 ^- D& U9 x8 l; }- J$ e6 ^+ k
- http.begin(url);0 B' G6 G. m B! ~
- }" z8 S4 O7 l( q O- J
- Serial.println("[HTTP] GET...");( P G0 C0 B0 V4 [
- int httpCode = http.GET();
4 q7 b. M9 p' y7 u - if (httpCode > 0) {
( E' I( U. J, A1 {, k% y1 S# o - Serial.printf("[HTTP] code: %d\n", httpCode);3 S; X! v n4 Q8 B8 j; M/ U, i, D
- if (httpCode == HTTP_CODE_OK) {& l$ }1 O w; [, H; p* S
- String payload = http.getString();
! k! `4 h6 X& j - Serial.println(payload);4 s5 a/ X6 @3 t, t9 `
- Serial.print("\r\n");
8 h% F# Z$ y1 O* V" W% _1 f - return payload;
5 h, m3 B! l) H- y, ?# y - }5 Y% Z8 |8 O7 j# }6 n5 j& D7 X
- } else {0 ]) V0 E) l' ]# @( w; m- A
- Serial.printf("[HTTP] GET... failed, error: %s\n",
* w( @. d& c- {: \( t - http.errorToString(httpCode).c_str());
1 b, t* {0 ]' O" u) ^ - }
. \4 q& V: U# Q$ G0 | - http.end();
9 x2 ?3 i3 L* n7 Q+ P - return "";5 Q" s$ H) p* v( G7 s
- }4 s8 p# {& D a, R
- }+ T8 R9 B7 r& r8 W& b) e* n
- void mainAction() {
* `0 N$ y. _/ R& T# F& K( h7 D - // 发送请求
. y- ~/ F' S1 b- H. P - doGet("http://google.cn");
6 I0 a: r0 a; [) L5 i7 ?$ D9 ` } - }
% C( T$ S( O( y. O& E8 {/ P7 G
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