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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 {! t6 y6 P* E" O5 t( z- #include <ESP8266HTTPClient.h>, d& T, n$ Z/ k" t B- u1 b! E
- #include <ESP8266WiFi.h>0 w1 i. w7 B* e9 K$ e& t5 C
- #include <ESP8266WiFiMulti.h>
4 Z; y% O6 }* H* ?/ y - #include <ESP8266WebServer.h>% b9 }" {* Q3 t" o5 x; j
- #include <arduino.h>+ c: j) J" U2 a6 o V) ]6 Q
- ESP8266WiFiMulti WiFiMulti;& c7 W2 g5 ?+ h
- ESP8266WebServer server(80);
1 k) g; z, E( r* n0 E# e- ? - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- j4 `! |7 m+ G" [8 }
- ADC_MODE(ADC_VCC);
6 O0 G e- h/ F" }& O0 S - void setup() {
% | [9 q1 u3 e# I# F; W - Serial.begin(115200); O. `; F9 R8 g @& R. B3 X
- Serial.print("\r\n\n");
! r* x7 y K/ w+ Z- X" e - pinMode(2,OUTPUT);2 ]3 p3 m; w. J3 }
- // WIFI2 S* { |$ l7 ?$ \7 X8 n% D, J
- WiFi.mode(WIFI_STA);
# b0 X7 F8 x+ k6 V; f7 D3 T' @( G- L - WiFi.hostname("Sparkle");
n1 S2 M4 f7 K+ d6 O3 f - WiFiMulti.addAP("wifi ssid", "wifi password"); d: o4 }8 ?& E( q
- int tryNum = 15;$ a% R* H. Q7 h0 E
- Serial.print("Connect WiFi");% [' `( y; B1 V/ X( T2 M) x, ]
- while (WiFiMulti.run() != WL_CONNECTED) {: u, s6 r3 N+ ~3 q6 B8 ~9 B7 q
- digitalWrite(2,0);& L' P" ~( X- F3 O
- delay(200);
8 D5 u' W, [* B* z - digitalWrite(2,1);
8 a* f; ? y X/ U) J& }6 Z" O - delay(300);( v+ `6 ~0 b. C/ ^+ q2 e& l% y
- Serial.print(".");) m) f. n" C; r# A
- tryNum--;$ M5 N! |$ I( ^7 K2 e3 x
- if (tryNum == 0) {7 f# m% r# R$ |1 {* Z
- // 1min3 U8 z w0 L! S
- // ESP.deepSleep(60e6);
) j, I9 ?) m& R4 a" b G% n8 T: x - ESP.deepSleep(0);
: S4 _' a& l) J! R/ x; c - }$ }+ T6 M) t+ ~9 ?0 H5 T
- }: b( A& ^3 c( _7 R3 Q! ]
- Serial.print("\r\n");
. z) y5 E9 B, e9 [2 b8 |8 n2 {# p - digitalWrite(2,1);6 F o# d7 \, U7 Y' R
- Serial.print("IP address : ");) c) Q: T3 G. H0 V* r! }
- Serial.println(WiFi.localIP());
+ D1 _8 j1 ~& W. x6 @9 E g! n - server.on("/", HTTP_GET, [](){# `, E5 S- i; ^
- server.sendHeader("Connection", "close");
$ C" B/ w5 d* p% s3 L% y& o, ~ - server.send(200, "text/html", serverIndex);
! Q5 f$ ?6 a4 T# O8 E - });
5 j+ g2 j- Q9 ^ L. i* } - server.on("/update", HTTP_POST, [](){
# P! u7 k" @! ~9 O - server.sendHeader("Connection", "close");
]3 @8 B3 s: x I* K: l& i h, p - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");- L) _5 g$ V" O% l5 u
- ESP.restart();: A/ M! y, I2 E: @, T' w; }' a
- },[](){2 ~7 w9 T4 `% e
- HTTPUpload& upload = server.upload();
( N. ~6 \- r l/ B8 ] e& R7 K - if(upload.status == UPLOAD_FILE_START){
. Z" j0 x- A" ?0 Z0 t - Serial.setDebugOutput(true);- _4 U( d+ u" J5 m6 \0 a
- Serial.printf("Update: %s\n", upload.filename.c_str());
- j5 j* d& Z/ [: i9 ]8 X) s - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! z0 D5 F& n& y8 A
- if(!Update.begin(maxSketchSpace)){
$ }3 U2 Q# I2 S I - Update.printError(Serial);
/ X( p/ l2 {* W1 g- J' K - }4 i' n2 k% w5 E5 i* C$ U
- } else if(upload.status == UPLOAD_FILE_WRITE){8 i$ X+ M! a4 E4 @/ G0 o) H; d
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){. f- }) u. V" y& H9 X
- Update.printError(Serial);, J" B- U2 S, Z
- }2 P( K. @$ {, j3 u5 t
- } else if(upload.status == UPLOAD_FILE_END){# \* q) y* U+ i% D& {# o$ ~
- if(Update.end(true)){
3 C' f$ [2 F& D3 i) f( {0 _ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! R) i/ i; M' {7 Z5 x - } else {9 g# q }, j+ {5 N: t" X
- Update.printError(Serial);4 k+ K9 K$ b* U3 U
- }7 _1 P& I& A. D# C; b9 o$ l
- Serial.setDebugOutput(false);- _% u7 Z& i, v
- }+ O( k3 E# R* h8 x+ g3 t
- yield();
5 d- _. |& }5 n3 \! p5 b% r - });
' N2 A" V6 [, s7 s) ~4 a: T/ N1 o -
3 F2 _" I. c& q9 Z" F9 [5 e6 D; P - digitalWrite(2,0);
5 H0 b3 M( h4 a3 \# k! k9 B - mainAction();
- N& O, l1 q. m1 [5 A& h - if (digitalRead(0)){0 n: ~' y2 O, e0 w% T) e
- ESP.deepSleep(0);
5 |) C# t N V7 X( u - } else {
- q2 Q- t+ H0 {. _1 {+ x% x - server.begin();: j9 y8 Z, _% P# m+ F. ~
- }8 N: V, _ C" @) x; s/ j2 L
- }1 l4 q3 _# F( Y7 C9 i
- void loop() {
+ w: [" c% ? {0 g - server.handleClient();; X% P; S% \+ ]
- delay(1);. D! E$ `4 o1 v7 i& @
- }
3 [& Y1 I) c' h2 r& r9 O - String doGet(String url){4 T9 L$ B9 {7 S5 X" ?/ F$ h9 u
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! R! Y% a% P, d/ f, C: a. h - HTTPClient http;& k$ N; ^7 K6 _4 R0 B
- Serial.println("[HTTP] begin...");
$ ^8 T$ g9 |& ?3 y8 E6 R$ e - if (url.startsWith("https")) {, Y, Z' @( H2 _: h: `! o
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) u1 s6 o0 m& I/ A- M* w
- } else {" K' \0 n0 F! s! ]5 I3 w
- http.begin(url);
. f- |6 U( A% O8 N' ` - }% t1 e8 {& ?: s1 f2 L V4 G
- Serial.println("[HTTP] GET...");
* {" F/ q# ]2 o. ^: @ - int httpCode = http.GET();! p9 x. x8 p0 ~) q9 X
- if (httpCode > 0) {" q% M2 x5 B4 E- O0 f. L8 \4 b( y+ `
- Serial.printf("[HTTP] code: %d\n", httpCode);
+ ^. p$ }* d6 g9 w( V5 ] - if (httpCode == HTTP_CODE_OK) {
* p& h4 E2 k1 h: m4 F G - String payload = http.getString();0 X; w9 }9 p) u/ C) J) R
- Serial.println(payload);) X* \9 N" n" `9 [% g9 x
- Serial.print("\r\n");+ P7 N) ~/ J6 ?3 `& s& w
- return payload;5 z2 w0 v; ^) y" x' @
- }+ j6 l1 ] ~9 L! B
- } else {7 W* O6 W" ]. a' q) P$ {3 J
- Serial.printf("[HTTP] GET... failed, error: %s\n",
, C; I6 o5 o6 w6 n8 U9 J7 s: y - http.errorToString(httpCode).c_str());
/ b T$ r! y. c - }
+ q1 l1 O) I h5 O+ Y/ D. B - http.end();' b! Y C4 ]4 |& w
- return "";( Q+ Q3 v d0 c/ |8 s$ I, y
- }
- N. p9 G2 l# l' E3 m/ m4 o1 k6 V - }
6 {. j* ~1 v+ D! @/ E: q - void mainAction() {) Q9 F5 ]: B/ G
- // 发送请求+ Q( H" g0 i2 L& Z
- doGet("http://google.cn");# C) ]$ g- r7 V F/ ^# S
- }! }: q0 T9 i( ], @; ]2 L3 w
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