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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)1 H5 F! U" D4 B
- #include <ESP8266HTTPClient.h>
" W4 ]; I* D6 ^3 @ - #include <ESP8266WiFi.h>
& t, w& U% L7 @! n$ g V2 F - #include <ESP8266WiFiMulti.h>
5 t6 \. j; q4 t$ M - #include <ESP8266WebServer.h>4 P: C4 R0 W0 ~/ f( Q: z
- #include <arduino.h>1 o5 |- X/ I/ d: m0 w9 T' W
- ESP8266WiFiMulti WiFiMulti;
# j- n) s3 E9 h+ s4 N+ h# j - ESP8266WebServer server(80);
5 m# E, B4 f, U" X" E% F6 @ S - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. w' m, l" Y6 {) l: n) E6 F' A - ADC_MODE(ADC_VCC);0 H1 g$ N7 w9 d) j8 m6 ]$ J: G
- void setup() {! X L! O- w" h/ w# ], z
- Serial.begin(115200);0 e0 S( b0 ~- [; K7 J- A
- Serial.print("\r\n\n");
4 }" X3 `2 z! o; N" k6 @: J/ [0 [" | - pinMode(2,OUTPUT);
1 B7 X6 W3 i3 q- G9 N5 [' f* o - // WIFI
; O! s# O6 M; j1 T5 Q - WiFi.mode(WIFI_STA);: }0 N8 L" b5 U% c# H0 _: k2 e
- WiFi.hostname("Sparkle");
) j: C0 C% T/ e% p d% s - WiFiMulti.addAP("wifi ssid", "wifi password");
% N$ j% X: N5 E- Z1 V! a6 _. g/ I3 L! e - int tryNum = 15;& P2 c; P8 M9 n
- Serial.print("Connect WiFi");. s( h/ B2 j' U
- while (WiFiMulti.run() != WL_CONNECTED) {
}' W0 H2 ~* L7 w* i - digitalWrite(2,0);4 ]" ~1 A/ `& H
- delay(200);/ g; ]/ H: x) N @; l
- digitalWrite(2,1);
+ i/ a- {% T+ k5 U; |; k: e* b+ G - delay(300);* ~9 F9 n0 ?; }
- Serial.print(".");" A& T8 B G7 b5 z: A! p. x
- tryNum--;
4 P' `0 ]# I, k2 ? - if (tryNum == 0) {7 e& t; r. d2 W1 N( u# q' |
- // 1min& I. x K& |& A
- // ESP.deepSleep(60e6);
& o. V# K$ Y7 B - ESP.deepSleep(0);1 f+ W! l9 R& d9 i& }& c% ?9 c
- }
! z2 x5 \7 O3 S: u8 r - }) @# Q+ q+ ? I/ K5 A% L: B1 O, F
- Serial.print("\r\n");
& q, F! R4 J8 m/ P - digitalWrite(2,1);
/ p; @$ E( x: X+ k) D! f# a1 H - Serial.print("IP address : ");
& Q8 e- N; I" B" s: S. V - Serial.println(WiFi.localIP());0 y; o; H5 J6 Q6 z8 j2 O" v
- server.on("/", HTTP_GET, [](){1 t) Y8 A; d s2 g2 H
- server.sendHeader("Connection", "close");
$ {3 h% R3 f1 {, q' `' s9 { - server.send(200, "text/html", serverIndex);% i! l- o' h2 f6 ?; z
- });, t, E" \$ \! ]- M2 ~ M) [
- server.on("/update", HTTP_POST, [](){
7 L# b: S. R3 W$ d8 h - server.sendHeader("Connection", "close");+ l$ n& w- N/ R) a" A
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' {& B0 t+ q) p. x
- ESP.restart();
- w3 `, T* [" ]' C( O' ? - },[](){
' J5 X/ J$ y7 D- t$ Z0 l+ u! \ - HTTPUpload& upload = server.upload();
+ I. A6 T$ \( y A7 N, ]& z - if(upload.status == UPLOAD_FILE_START){' B# J8 F k- L/ R/ q/ ?4 _7 j
- Serial.setDebugOutput(true);
5 v7 C+ p. J) n% m8 b+ t - Serial.printf("Update: %s\n", upload.filename.c_str());( _# X% W! i4 f# h7 M. q; \
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 p% \5 T3 S7 Q) J0 G, @ - if(!Update.begin(maxSketchSpace)){
5 `/ Z, K `+ `, Y8 N6 F+ b$ c- U$ i* G - Update.printError(Serial);0 m _+ `% i7 `0 k
- }
, H( ?$ n& D7 } - } else if(upload.status == UPLOAD_FILE_WRITE){: r; w, P# P3 e" L6 g1 c2 O
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 h% A, Y1 q5 X w* U) @ - Update.printError(Serial);
1 ?" J$ X' u& P4 J* c, G - }
7 q( `( g% X" q# r - } else if(upload.status == UPLOAD_FILE_END){5 P& F- v3 S# X; D! H$ L X* B1 @
- if(Update.end(true)){1 N, b' x) D9 k. i
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 v/ Z8 i# n s, }' k
- } else {0 j6 [" q$ g5 T2 u, W2 |
- Update.printError(Serial);: D$ R$ k7 D7 J1 i8 a. X
- }
5 j% C) y8 s/ e3 v3 R: d - Serial.setDebugOutput(false);
* a, k3 N7 E5 L - }) v- ~5 r; o* G5 |
- yield();
! P( M; Q' n' U/ B/ v( ~( d6 i - });# `! a8 _0 N8 Z
- 4 G. Z4 `! F7 | z3 }
- digitalWrite(2,0);
5 u4 \2 D4 X5 D5 c5 D - mainAction();. O1 I1 [) b; x7 r
- if (digitalRead(0)){5 E. \ R! _; P4 M$ ?
- ESP.deepSleep(0);% U8 r/ J2 ] i8 S) b& d; d, k( v% t
- } else { g- v+ P( E5 L$ o) z
- server.begin();3 ?4 P, Q; g7 P% M! d
- }
$ x$ w! h7 X' S/ R4 p# a - }
$ C& x! C) U/ S, Y( T* p - void loop() {
/ ~( [ G( K# Q, J& D - server.handleClient();
5 O* ], P1 c/ k% k& L - delay(1);
0 o! a, P' y. {" w# C; L - }
/ |1 t7 m: h7 V, v, X+ K! u+ r - String doGet(String url){
* o% |& W, A# w) r) j" i8 E - if ((WiFiMulti.run() == WL_CONNECTED)) {
6 Z/ ^) ^# a6 e8 ~( K: E( I1 M" K - HTTPClient http;
$ }# u4 [( S4 I, ?* G1 E' g: l - Serial.println("[HTTP] begin...");4 t+ @9 w. s1 U# i- r9 Y$ K8 c# v
- if (url.startsWith("https")) {5 O4 ~% ?. h- v( H
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
( a" K V: H( {5 _0 X - } else {' Z ]0 [) f" ^8 u# |
- http.begin(url);
3 F: R5 h% F I9 @ - }
$ t4 e# m# u7 s) O* E& R - Serial.println("[HTTP] GET...");
* m. x4 ?! ^% C- v2 ?7 I - int httpCode = http.GET();) H# B# N0 j& [& I8 F
- if (httpCode > 0) {
* h* w0 G0 v5 M3 D | - Serial.printf("[HTTP] code: %d\n", httpCode);
# u3 d, R8 ?. R$ Q _; v - if (httpCode == HTTP_CODE_OK) {
, b# E; n7 x; l: A - String payload = http.getString();
% ~8 d9 G4 e. m j! f) x - Serial.println(payload);: t* u( H9 t" h: h3 K. R/ i
- Serial.print("\r\n");/ ~' u9 ]$ I# T% ?1 U4 z* J9 g
- return payload;& i% M5 {. P' r! l# {
- }0 r6 a. L' l- B7 p. ?+ h" K
- } else {
9 ~2 x# b" Q+ ?1 Y& v - Serial.printf("[HTTP] GET... failed, error: %s\n",
& Z& L; W. A3 R" R; o% `( B" a- Y - http.errorToString(httpCode).c_str());
8 |- b4 u+ M+ `1 U& n - }: ^- e6 s6 [; v! c6 Z0 k
- http.end();
) d: |5 g& V- h& ` - return "";/ M* s+ c! p9 }- R) T, `
- }
) F) n, f) H7 s3 O" g - }
. E* B2 P$ t* s% z# R& u - void mainAction() {
' I7 C0 {7 H- q- y- x - // 发送请求" \) j, R5 ~* P& ]
- doGet("http://google.cn"); N5 R( j; v w' M
- }- Y! z2 ` e* C9 Z- x; L% \
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