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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)8 k+ a9 U9 _7 ^! f
- #include <ESP8266HTTPClient.h>
+ G" f# N& y% T( W% b' {1 A - #include <ESP8266WiFi.h>0 }3 o4 z' Z W! l& ?# l
- #include <ESP8266WiFiMulti.h>! ~. e4 z9 {+ g6 ~6 A) f' b- r0 \
- #include <ESP8266WebServer.h>; y$ P" |1 j* s8 \( r# {
- #include <arduino.h>
' f K- x8 ~$ t( \( O& o/ H2 ^5 m* b - ESP8266WiFiMulti WiFiMulti;
( M \5 U, d# J+ O# v - ESP8266WebServer server(80);! K! n! w, e8 R2 S; }- X. {
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# |+ l/ ^4 `0 T0 w& G7 P+ X& O
- ADC_MODE(ADC_VCC);
5 r' k' W3 ?) ~/ Q - void setup() {
' A& }# U1 h1 j& p* G - Serial.begin(115200);
x) X+ f8 k/ _, f) s; I I - Serial.print("\r\n\n");
( ^" Q0 o F0 K I$ A+ s - pinMode(2,OUTPUT);
: _, p) t. f1 u# a% ~ - // WIFI
) v* U: q7 h) l# O- f - WiFi.mode(WIFI_STA);- A: F+ J/ C; ]
- WiFi.hostname("Sparkle");$ S! s, f- v1 [/ T. }2 W! f
- WiFiMulti.addAP("wifi ssid", "wifi password");9 r5 `0 G; R C
- int tryNum = 15;% S' L5 T2 f, f U- X
- Serial.print("Connect WiFi");6 Z7 [1 ]3 {8 ^: D' c# ]" R
- while (WiFiMulti.run() != WL_CONNECTED) {" s+ _, {: ^1 T* a# s$ q
- digitalWrite(2,0);
( U5 Q, q! M3 l4 o' q - delay(200);
/ F2 x* m, h0 g3 `2 W - digitalWrite(2,1);
: d5 s: V2 Z5 _/ z" s - delay(300);
" O3 k- t# m- c& R3 O) v v. n - Serial.print(".");
3 S% _/ [$ p! d2 z9 Y0 t3 t - tryNum--;
6 n* O0 l y* G0 T: W: R* y - if (tryNum == 0) {" ~. C/ L q O8 F! X4 b
- // 1min! N' W* M6 x. |. M
- // ESP.deepSleep(60e6);/ C1 l) O: o k$ B1 e" |
- ESP.deepSleep(0);
1 ~) V) J k0 x5 R( f% _ - }
8 u- E7 _+ i# J - }* k C- m/ @+ P7 a* p% G7 @2 m
- Serial.print("\r\n"); e/ _( A& a7 u
- digitalWrite(2,1);2 I. k1 e4 U' k" g5 C( r) u3 t
- Serial.print("IP address : ");! O' ~# F/ G0 W( d) n
- Serial.println(WiFi.localIP());
6 X& k+ y/ p' S; {; O6 L2 r - server.on("/", HTTP_GET, [](){ ]8 e( _8 ?( V
- server.sendHeader("Connection", "close"); t6 c% a4 R' ]# u- D) W$ p
- server.send(200, "text/html", serverIndex);
Y \7 V7 @+ B, \; G - });
* _ ]6 L$ J- i- c: d; R - server.on("/update", HTTP_POST, [](){( ]: @" O, w$ y* B3 H; ?( ]
- server.sendHeader("Connection", "close");# f3 z# S& w* L. \% U2 v& W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& t( ~& _) A3 M# B: y$ n7 f - ESP.restart();5 v4 B7 m, ^8 T8 [
- },[](){
/ f C) Z) E! Y& Q' y3 A& m5 n v - HTTPUpload& upload = server.upload();
# h. k5 g5 Q( h8 A# | - if(upload.status == UPLOAD_FILE_START){
6 D- C( R1 B% ?, |! a# M" ] - Serial.setDebugOutput(true);. ]% w$ S! m0 j, s& _7 P0 b
- Serial.printf("Update: %s\n", upload.filename.c_str());/ q5 f6 m4 A: x4 ~- ?
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% H9 ?) a3 M" o% ~* P6 K( G
- if(!Update.begin(maxSketchSpace)){+ I+ U; W1 G V1 o7 L! z
- Update.printError(Serial);
( c3 q) a: P% @2 I: w7 U - }6 f+ \% y$ d5 S G. o6 M
- } else if(upload.status == UPLOAD_FILE_WRITE){
' ~& R- X5 [5 A5 g J4 j' ` - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 ]* U% [' ?( D* ] - Update.printError(Serial);' C; \: R/ X3 G* W, e: R
- }$ H9 O0 ?* M+ \( U" Z7 l/ C9 {
- } else if(upload.status == UPLOAD_FILE_END){) v M# }* v4 n4 J! `
- if(Update.end(true)){3 {" ^, ^: p" Y! N
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 p+ _5 t) x+ N - } else {5 I, n( m9 v! ^, B8 ]& A6 x; O# N
- Update.printError(Serial);8 P. i: d7 Z- T7 d* H
- }
) Y6 P4 T) Q/ R( a8 c - Serial.setDebugOutput(false);) b# r6 D* o& O4 {
- }
: j, D. p: G+ c. T7 T& N0 V - yield();
' t7 G/ s; u# ?- Z! m6 o - });
8 V/ g! B: Q$ x6 a1 L1 C- d - , s6 j7 x3 `, x7 Y: N
- digitalWrite(2,0);
6 w) t; w: n; i- ~ [4 H3 a2 ^ - mainAction();* |' [, o" h7 t6 e' I
- if (digitalRead(0)){; Z2 l9 x5 G+ p1 t
- ESP.deepSleep(0);9 N; n' R# R; L
- } else {
8 t W1 X O" H; @# n# J& ~ - server.begin();% o5 M: d/ B# P9 j
- }
7 m- `/ k; y: y# B* \+ x9 t$ P - }
8 `( K- z! Y$ ~: c5 P0 b - void loop() {6 [4 Y5 Z. d! o3 f
- server.handleClient();
$ r8 l6 n% i0 s% `! m - delay(1);
, @- K9 L" g$ g" B; ^8 P' j - }
1 [& U# f' g: o$ D! ?. @ - String doGet(String url){
( V. S* w3 r/ t0 x( a3 E8 W4 O - if ((WiFiMulti.run() == WL_CONNECTED)) {
( t$ M8 Z6 L$ Z( ~1 \( w - HTTPClient http;( c& r5 C! P9 A0 L- A% e
- Serial.println("[HTTP] begin...");% J, [7 t/ A/ n6 ^! [
- if (url.startsWith("https")) {
5 s# r0 F, o9 B - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");8 @$ t& n; g0 w" U2 E) }
- } else {
6 h( |8 |! G$ x- v2 {0 a; B0 T" d: n - http.begin(url);* M" \+ x& g7 B
- }
. T1 Q+ R9 R. M/ f* H7 k - Serial.println("[HTTP] GET...");
# z. {, ^7 M& }4 S - int httpCode = http.GET();2 J7 S t9 ]* A- _
- if (httpCode > 0) {5 z! P2 ^- I; t9 w! w7 ]! y5 Z
- Serial.printf("[HTTP] code: %d\n", httpCode);
0 J* k9 p$ m) Z ]7 V) G% M+ A5 z - if (httpCode == HTTP_CODE_OK) {5 w1 d# k% L! {5 J7 w+ H, F# `! G
- String payload = http.getString();
/ H; G% p3 `3 p# e" r# k7 ^) o) U- s - Serial.println(payload);
& q- n. Y9 H; f- F0 R) i - Serial.print("\r\n");" c& |- a# x" I3 D9 S
- return payload;7 h8 h8 O) a- l. N& L
- }9 G9 ^. D% U* I1 W* k. _5 y) C5 h
- } else {
# y6 X( O) n; E% S2 }! l" j - Serial.printf("[HTTP] GET... failed, error: %s\n",
" k0 W( m9 X3 U; V# e2 Q* p - http.errorToString(httpCode).c_str());
u1 f" @# Y1 e9 S - }% K- F1 _0 y1 Y A& P N. N5 e
- http.end();+ u7 ?* c1 g& G9 r' q! Q
- return "";2 j* Z2 Y) b/ C2 @3 t" Y
- }
: Z- u6 w* A6 E. T5 N - }2 E, K' | [4 W( Q; P
- void mainAction() {
0 { R0 s6 g( t' l - // 发送请求
1 ]: j" r2 E+ C( ~. \ - doGet("http://google.cn");* K! E2 g6 _ D) O3 R
- }
1 Q4 \# m( I( k/ D; J
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