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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)
( p) o6 s; {% K f, o* G+ L3 q- #include <ESP8266HTTPClient.h>
2 g# W6 j: q$ n: N8 t - #include <ESP8266WiFi.h>* B/ @- d- {2 |( `3 i( f; m7 S
- #include <ESP8266WiFiMulti.h>6 b, y4 t& N6 l" W. P S
- #include <ESP8266WebServer.h>( D4 `$ l/ F b( t( {
- #include <arduino.h>
3 R: b2 D/ I. W7 M) U$ Y9 t - ESP8266WiFiMulti WiFiMulti;
: S# y, ~7 U; J8 R, \ - ESP8266WebServer server(80);3 y# }' L, h6 A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 p5 _+ L8 I; W+ Z- L2 [: t - ADC_MODE(ADC_VCC);* f6 ]- r O" x
- void setup() {6 e7 \* \5 Y* L4 L! u0 L& T
- Serial.begin(115200);
6 N; f4 I3 s1 r d - Serial.print("\r\n\n");
: R6 C( a2 ~8 q& G - pinMode(2,OUTPUT);
6 H+ @/ q/ }0 f c - // WIFI7 C1 l# W& l1 T' N" V
- WiFi.mode(WIFI_STA);
$ C+ J( {3 N0 |' c. T! @ - WiFi.hostname("Sparkle");4 {' M* B8 X( [8 g
- WiFiMulti.addAP("wifi ssid", "wifi password");
/ T' c5 v- B- h# N! `: z& l - int tryNum = 15;% c6 f6 n, q- S0 e
- Serial.print("Connect WiFi");
( D! N/ o& W0 j2 f$ c - while (WiFiMulti.run() != WL_CONNECTED) {& O( a0 v5 X8 g* Y
- digitalWrite(2,0);+ c% ]5 V, u/ W1 p
- delay(200);0 Q; c: Y3 p" Q7 f; Z
- digitalWrite(2,1);
* H: ]1 l& \& i: x6 a" y - delay(300);
k4 x7 D/ C, ?6 v; ~ - Serial.print(".");
3 I" C6 P; U; B' y! s9 K - tryNum--;) p+ R7 W, `( z+ m: L5 G, V
- if (tryNum == 0) {0 t6 [/ s. M4 z* F/ o
- // 1min! k# p+ o/ V6 |
- // ESP.deepSleep(60e6);
) r: B" Z. s! G6 c o - ESP.deepSleep(0);" e9 p) }9 x/ B, Y6 J
- }- ]! y f' i- ~4 P. ]( n& \( R' t
- }
( f, T8 N3 L* t) w; h - Serial.print("\r\n");4 D4 Y" z) d, h0 R" ^) t& g
- digitalWrite(2,1);
1 P; d F$ \* S, L) s9 ^( O - Serial.print("IP address : ");
4 W. K( S! ]* K7 v4 v - Serial.println(WiFi.localIP());
* o5 g5 `' T# d7 ~ - server.on("/", HTTP_GET, [](){
; G' R& I3 |4 p4 I - server.sendHeader("Connection", "close");. a5 d' e% {: _2 P7 C9 V. g6 u" R
- server.send(200, "text/html", serverIndex); U$ l- Z" o6 j! U$ O" s. E
- });
# {' W$ x0 U& \7 s - server.on("/update", HTTP_POST, [](){8 y. I) S/ S% t/ n Y. t& M
- server.sendHeader("Connection", "close");
* ~" F2 P( k. j8 E, c" r - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
v" f& @: \. _" b - ESP.restart();
! b# b3 a( z! P" ` - },[](){% V; k& }9 t9 f6 E: X
- HTTPUpload& upload = server.upload();8 `/ c3 Q! V( x0 U6 y7 J6 M$ A/ i
- if(upload.status == UPLOAD_FILE_START){
1 U6 y% X; L) c* f - Serial.setDebugOutput(true);
" p8 h% I; i2 q4 b( n+ ` - Serial.printf("Update: %s\n", upload.filename.c_str());
$ d- i' v9 q P* [1 b& E7 a - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# K' s' \7 p" u5 U
- if(!Update.begin(maxSketchSpace)){
- X; B9 G: s3 p- V - Update.printError(Serial);
6 s/ C8 y! s6 s& p$ H - }9 K7 |4 u; z; i& E- ~: R! d
- } else if(upload.status == UPLOAD_FILE_WRITE){ b6 t, d# O* A! `" L
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ a+ ^- v7 Y, P" e) k
- Update.printError(Serial);; x8 S3 _5 T8 Z3 C: I2 W. ]
- }* I: f' j2 q/ N9 U: J# e) u
- } else if(upload.status == UPLOAD_FILE_END){! K. ]6 o5 Y) q `4 @; o3 q' ?
- if(Update.end(true)){* N" K$ Z- V! {$ V9 ~% h
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 W' d- c5 N2 z R - } else {
6 v- g) r8 f" l$ z( X/ A2 ~ - Update.printError(Serial);( d4 O; t5 \6 G+ u. D1 @0 t
- }$ t8 v6 s; D8 O' H+ E* [
- Serial.setDebugOutput(false);
2 C# ^& Q" s1 Z2 a) X' F) s2 X - }
" d: t% ~0 J2 K# I; i9 k( E. b - yield();9 o* z0 j6 t5 ], k0 D) G9 U7 ^- Q
- });
1 ^% C$ @0 j# {6 C0 @2 } - * E/ t1 \& K/ d( U
- digitalWrite(2,0);) B4 L- |2 o# p2 D' b' U/ D
- mainAction();- Q, G; i: p7 e8 w9 J1 t
- if (digitalRead(0)){
/ o( H6 f% {; @8 a7 i/ |9 J - ESP.deepSleep(0);
|1 Q. Z! N' ]% I9 L - } else {1 r/ F. O: y% o6 ?+ B
- server.begin();
/ I6 a7 t: h$ m' e6 T - }
6 ]+ [3 e0 g# Q - }, f/ R6 @6 i7 X9 g5 l
- void loop() {
P; n3 R) i% [; F* K - server.handleClient();
4 B4 |5 e2 Z5 L$ h% ? ` - delay(1);
2 t' R W" q- ^7 l/ j - }1 g0 k, B. l2 @3 ~4 W8 N
- String doGet(String url){2 b2 c8 k+ W; E$ N$ C$ P
- if ((WiFiMulti.run() == WL_CONNECTED)) {8 U4 H& ?& T4 K$ C" s0 g# g* e1 N; b
- HTTPClient http;
6 U. g- n( ~: K1 U. g( Y - Serial.println("[HTTP] begin...");$ I" f9 n. {4 m
- if (url.startsWith("https")) {
9 }1 F1 q N* ]* e% D* h) d - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" X M0 F" O( O H4 } m. E
- } else {) u \0 {' n6 {2 M( F
- http.begin(url);: G: s, H% Y, N+ c. Y4 a0 J
- }
3 ?* S/ U# U7 H1 O x - Serial.println("[HTTP] GET...");% q# w0 V1 m1 t4 M/ m4 {
- int httpCode = http.GET();, j( O1 B4 w/ Q2 L+ K/ Y7 [+ Z& R
- if (httpCode > 0) {
5 U2 v$ J2 x1 A6 c$ E- k - Serial.printf("[HTTP] code: %d\n", httpCode);; o) o1 D7 @! b1 }7 t8 ^; J
- if (httpCode == HTTP_CODE_OK) {
" C3 ^: R2 z- P7 w# I, G - String payload = http.getString();
& ]3 U/ A1 K1 R2 B7 S - Serial.println(payload);. n4 [; Y$ y _/ W( e
- Serial.print("\r\n");
" `" s( e7 x" t- s8 {/ D - return payload;
7 A- f3 {/ K# _: e7 m- y - }
1 |! j0 j$ K: i& i! r - } else {
`7 l1 w$ C8 D - Serial.printf("[HTTP] GET... failed, error: %s\n",4 X+ q0 \) x7 Z& Z! a, f, \
- http.errorToString(httpCode).c_str());
* P+ X2 Q0 m8 H: a0 O( Y+ ` - }
5 j- {5 B1 W" E4 h5 T. E - http.end();, w+ C' X! u# v9 a
- return "";9 k8 M: V/ I" n, r" a
- }) s6 m) i% e O' h, m
- }/ W2 f3 D, k; A8 ]
- void mainAction() {
B% X- ~; B' C' {/ Q - // 发送请求# }( q. z$ P1 b2 `( H% Q& a" L
- doGet("http://google.cn");) E3 v3 \! u3 H& i% e
- }# N) i }, Q3 Y( `
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