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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)
; F/ g& h$ P7 I: Z4 W9 o9 Y9 l- #include <ESP8266HTTPClient.h>
8 D* @7 b* I' l2 N6 u - #include <ESP8266WiFi.h>
7 j( R4 N* p6 r" @3 B& n6 {' O - #include <ESP8266WiFiMulti.h>3 s k+ F5 n5 u, M
- #include <ESP8266WebServer.h>
% i; r$ z( K' U( q - #include <arduino.h>
, a, u$ ^8 |& G! \2 H - ESP8266WiFiMulti WiFiMulti;8 K& @# E& F) ^1 u/ _6 z
- ESP8266WebServer server(80);( i. t5 L( g; S- U5 n7 \- s; [
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! { N8 ]* n# P( E6 s; w1 r) W% ? - ADC_MODE(ADC_VCC);" ]/ [) _0 E/ k1 j
- void setup() {9 }# U& {, W1 i n% V" c4 I E0 g
- Serial.begin(115200);9 p8 K4 a1 V+ @+ L3 S3 `5 J
- Serial.print("\r\n\n");
& H" x1 c5 ?' d& s - pinMode(2,OUTPUT);
$ v. [: s4 f" x3 W/ Y: S - // WIFI
6 V* s1 K: Y! g0 v. r - WiFi.mode(WIFI_STA);! }$ p5 P9 W' R# z/ J& B
- WiFi.hostname("Sparkle");0 Z5 X( R4 `7 _3 g
- WiFiMulti.addAP("wifi ssid", "wifi password");8 J% p0 K# l. ^6 u3 m, Q
- int tryNum = 15;
( d# e e& L" b) Z - Serial.print("Connect WiFi");
* }- R# M9 M. Z. U* B& k: ^2 T' S" ` - while (WiFiMulti.run() != WL_CONNECTED) {; ]1 g: M" z7 i5 U) W
- digitalWrite(2,0); @ d: N& j5 |, K+ N/ G$ G
- delay(200);- A6 v/ x3 Q; J
- digitalWrite(2,1);
% o8 K/ k. R6 K8 r - delay(300);
# \/ D, q9 [8 p, i) A& Q - Serial.print(".");: |4 D6 d( _: T* ^
- tryNum--;1 X- m0 |- i& R- g0 g
- if (tryNum == 0) {
2 {* H$ t" p" y& \& e - // 1min
/ H* z% k) h# x" g# [ - // ESP.deepSleep(60e6);
. _. C! g0 x! k5 l$ k: j2 a - ESP.deepSleep(0);! w b5 _, F0 b5 ?4 t/ _# r, ?
- }
8 p! x! w. R7 Y5 e1 S4 l4 p - }- X7 o: m0 |. k9 c+ Q& J
- Serial.print("\r\n");3 @1 ] u+ l' [) ~' Y
- digitalWrite(2,1);' C5 h+ F5 N" P( d+ @* m# V0 s& ^
- Serial.print("IP address : ");* L0 Y! r) U3 |" c
- Serial.println(WiFi.localIP());" m5 G6 M* O3 l9 L; P) c
- server.on("/", HTTP_GET, [](){
3 L a: ]! N+ r$ D% ^# g1 j( q9 \ - server.sendHeader("Connection", "close");; M- y* z2 m* C. o/ t
- server.send(200, "text/html", serverIndex);/ e; ?. W2 j$ ?* K1 y/ L
- });
1 f: j; e$ C/ k7 U2 F p8 f) i+ R - server.on("/update", HTTP_POST, [](){% L+ y# q2 C. D; S$ V& I% ^
- server.sendHeader("Connection", "close");0 J1 P2 ~' J" F( ^# Z3 @- \
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* \" N+ l# Q) P# E. ^6 a9 D
- ESP.restart();
# Y7 A9 b2 N, r3 m; A- I - },[](){5 w. I; J. h% \$ `# c4 i
- HTTPUpload& upload = server.upload();+ C' [9 }6 Y" J& r& r
- if(upload.status == UPLOAD_FILE_START){1 Y$ P% q8 K) y1 A6 [1 A6 R
- Serial.setDebugOutput(true);
( V* D) ?4 Q' a+ { - Serial.printf("Update: %s\n", upload.filename.c_str());) i) O3 f1 ^0 U* ^; Q; }7 ~; u% d
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
* K6 @! Z/ [- k6 U @; q/ _ - if(!Update.begin(maxSketchSpace)){) H) h9 ]7 l) y) K1 N& M
- Update.printError(Serial);
4 T4 v. }8 t# @- v7 B - }
1 J, z+ P% P, t* o9 `& Q' I; L% a - } else if(upload.status == UPLOAD_FILE_WRITE){
$ U4 F5 l7 {: z# L& J - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){0 U9 A% u! ~' s
- Update.printError(Serial);
- h4 S: N7 @9 O% I) N( y# } - }+ p9 h& J9 T1 H* d) M
- } else if(upload.status == UPLOAD_FILE_END){# c! w7 U2 `) t. u8 X* F6 x
- if(Update.end(true)){
$ v& A H2 G$ n: H0 v: ]7 P9 y ]2 y - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: G7 e9 l5 g9 A1 Z: X
- } else {
' x( L0 O) K1 ~5 f: {" j# o! e - Update.printError(Serial);
6 q4 r! c- [$ G- n0 j" a D - }: i* ?9 f- b; F: O5 q* g
- Serial.setDebugOutput(false);) J: R/ q; h5 M+ I
- }6 E. d- M7 x4 ]. q7 P* |/ ~" p
- yield();1 o; v3 W! u- E8 f" {
- });+ l/ K( i6 K5 _3 M/ ]- D8 i5 j P
-
3 i o }' Q% E( P4 F3 w; u7 n0 O4 r - digitalWrite(2,0);8 Y% s. V+ Y# u0 U2 n2 K$ c
- mainAction();* S- X- Y( o1 w6 V* G4 e0 I1 L
- if (digitalRead(0)){
* C4 D! p% q7 i - ESP.deepSleep(0);
3 H. g" z" A6 H- c* Q - } else {
, Q( d8 F2 H1 o% G - server.begin();
$ `+ \- j' ~' a* E% s+ V5 a- E0 g - }
0 d. e [4 E9 P' M6 H6 ^ - }, n- M: }" v3 n5 r$ \4 s
- void loop() {
2 F% w7 R) n: D1 f L, h" U4 l% @' ` - server.handleClient();/ p3 ^ J* T$ ]$ w- A
- delay(1);) \* {8 Y, H: d4 P" S+ ~- F
- }
! E Z( Z1 j n5 E+ q - String doGet(String url){; Y* j& \* t6 I. w; i, s
- if ((WiFiMulti.run() == WL_CONNECTED)) {9 ]7 j& o( h2 G4 t' l9 x, ~& e
- HTTPClient http;* s* o: p% l! L v" Y+ D
- Serial.println("[HTTP] begin...");
# n W4 r- @1 [+ v! _8 u - if (url.startsWith("https")) {
6 v' r/ ~% E9 O4 u K+ Z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. q; h4 g4 H$ r. A# D, |
- } else {
$ }: S( G+ K8 n0 U6 o - http.begin(url);
! T" ~' f. {$ j2 { - }' `. G- ~0 F( m; y! T6 c% c/ c! }& @
- Serial.println("[HTTP] GET...");! O; { ^* T: j
- int httpCode = http.GET();0 l# B- V/ Y9 G: V" i. G, B
- if (httpCode > 0) {
1 X2 s1 l' \/ h( m - Serial.printf("[HTTP] code: %d\n", httpCode);
# f% j( K! k1 n0 y2 Y* A - if (httpCode == HTTP_CODE_OK) {$ }* F6 N E8 u7 h/ ^7 c) U9 }5 h
- String payload = http.getString();3 `" i3 n, x" g$ o0 H6 u# H
- Serial.println(payload);) b' R& q5 |" w. y
- Serial.print("\r\n");
, v) {* n3 O, N* i6 N - return payload;6 W" @2 {; o% J: F
- }7 f3 ~: h6 ?$ y) ?/ o; a
- } else {
/ @: x5 z) O) a" L- E - Serial.printf("[HTTP] GET... failed, error: %s\n",4 J" H% W H! s, l% Q( m! C V
- http.errorToString(httpCode).c_str());2 l3 a; T) {- l0 m0 w g
- }
- \1 `& a+ ~2 z) m4 @3 z - http.end();$ h! \7 f# @& N7 ?
- return "";" m* p! a4 X1 n) x6 x d" ^! h: s7 _
- }# X) O) W5 r, ?: n, A" }
- }
$ n& Y B# C ^5 a- Y, i4 Y - void mainAction() {# g, q; `' t+ d. i) y `" l5 M( C
- // 发送请求6 c; z4 [" b8 y0 L0 H0 |
- doGet("http://google.cn");
# j' ^8 k3 F4 G2 E- |% [2 c" G - }
6 Q4 ]# ?9 Q; u: X! Z* H/ Q
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