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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)% b- u2 b9 N& J4 [
- #include <ESP8266HTTPClient.h>
, p$ s( v4 Z, G6 t W - #include <ESP8266WiFi.h>' `1 @ |8 P# Q. R. n
- #include <ESP8266WiFiMulti.h>$ P& v- \# Z& ?, Y4 S9 l g) c1 `4 V
- #include <ESP8266WebServer.h>1 m e' B7 @: x' F
- #include <arduino.h>: M! z: l" x4 T; N, z8 F* O/ \
- ESP8266WiFiMulti WiFiMulti;
, n" }+ o0 {# k& | R/ h# E - ESP8266WebServer server(80);
3 D9 g" X1 g( Q1 U" a) M - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";# M' S- y" j% g/ ^
- ADC_MODE(ADC_VCC);
7 }# L2 h1 [; @ - void setup() {" H3 u4 J# _8 p! Z4 u! A% C
- Serial.begin(115200);' i: a- k% l" ?( S- Z
- Serial.print("\r\n\n");: q# e- c2 U5 G) d: Q5 V
- pinMode(2,OUTPUT);. E" Z4 h# y5 j9 W! d, `; e# k
- // WIFI
8 K' k$ C4 p& |& B# B - WiFi.mode(WIFI_STA);
- O$ d- ^( R# F1 o& M& @: T - WiFi.hostname("Sparkle");* W* P9 u- e1 I1 v# J8 m9 ?9 @
- WiFiMulti.addAP("wifi ssid", "wifi password");: M4 N( g* d7 G3 H3 V7 @* E* Q
- int tryNum = 15;5 m& G& S) ?$ ^9 K
- Serial.print("Connect WiFi"); g* f3 p: `/ [
- while (WiFiMulti.run() != WL_CONNECTED) {
9 E) C: i5 ^2 q, j! q, Z# } - digitalWrite(2,0);! s2 y/ s1 T# k( |' [
- delay(200);1 |# h# }% X$ p* o8 e2 u/ t3 B
- digitalWrite(2,1);
" E! H2 c5 w2 T8 y' T( i+ q - delay(300);
5 {% u" h6 b0 }) f, Z - Serial.print(".");
" a, [+ N2 |/ |3 Q1 c - tryNum--;
: L5 W3 I, B* e - if (tryNum == 0) {& M: r. S! P' [+ B3 w, H
- // 1min
! c% D' r2 G" |; | - // ESP.deepSleep(60e6);+ q) F/ D/ j# o5 A( ~6 O8 ]
- ESP.deepSleep(0);0 a. j0 v+ y1 e, d, @# I, ]
- }
3 r+ \$ d2 G' U - }
5 d9 ]0 d. {$ k" O0 h - Serial.print("\r\n");0 N2 o4 l: j' `& [
- digitalWrite(2,1);
2 h" ^8 Z( c: ]4 c) d" S - Serial.print("IP address : ");7 a" ^- Y0 t9 X8 P8 \) a
- Serial.println(WiFi.localIP());
# X, E, m% n9 X! a6 r/ k" ]8 g - server.on("/", HTTP_GET, [](){
% Z- l, ]0 q+ G! w% } - server.sendHeader("Connection", "close");
. x- T5 x) G1 h" z: t - server.send(200, "text/html", serverIndex);
" y2 x" }! X( `1 Q3 Y; d/ g5 R - });
0 V' `( f6 c6 }9 Q - server.on("/update", HTTP_POST, [](){ p8 R6 N( ], a& D* o2 c, } g
- server.sendHeader("Connection", "close");
) N" Y) ?( ?* ~- {- q! f; w - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 ~, k: p9 O& h - ESP.restart();
7 ^4 S/ I" w5 R: o - },[](){& A( C, F( o6 t4 F' E9 Q9 _$ P
- HTTPUpload& upload = server.upload();
) z0 y$ K; P" ]& } - if(upload.status == UPLOAD_FILE_START){
( {6 |! j. Y/ k. B& H* h- A - Serial.setDebugOutput(true);) I' p5 B0 t" Z3 j( s
- Serial.printf("Update: %s\n", upload.filename.c_str());" u( z( C! @& b& \2 w: a
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ g! c' a0 o0 n0 y - if(!Update.begin(maxSketchSpace)){
% v" Z7 c2 {4 ~% x - Update.printError(Serial);" s- d" l+ R- {) S. ]* J( C! S# a$ h5 ^
- }2 c$ i; G. I4 y* e- @, {
- } else if(upload.status == UPLOAD_FILE_WRITE){+ h9 I) D3 w& N" ~: p/ I' \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 d8 K8 U9 L2 y, l2 _/ } - Update.printError(Serial);
2 B. x8 B$ p& j2 t+ v9 d4 c; a2 O- T - }
3 J' ?3 E$ \% d2 r3 |% G* j - } else if(upload.status == UPLOAD_FILE_END){
! T9 ]$ T! j' f# p9 ~ - if(Update.end(true)){' T# y$ Y: \' E7 Q* |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) [; m5 q' M$ m! e
- } else {
, |: M+ V2 o& _; @ - Update.printError(Serial);! C6 ~" o5 s; j$ w4 S8 U' a
- }
9 T3 @! g H4 l0 U - Serial.setDebugOutput(false);) {) n' G. M& O5 x8 d6 B' z
- }
6 s$ u7 e* P# O: S. X- V8 y9 w! p& u( J - yield();8 o. w( U4 X1 K% E1 i
- });: G' C0 M# G# G+ Z9 ?
-
' B. J+ q& K- P7 e- }9 y0 ] - digitalWrite(2,0);. H; L1 E8 H; B( o6 \9 ?
- mainAction();
; R' Q* K$ I5 V' z/ } D - if (digitalRead(0)){
( y" P& R9 n3 o J# d9 [2 S - ESP.deepSleep(0);
8 t$ l6 H" @+ }; W- W- G8 E/ V - } else {4 G& a. P5 Q- U4 {& D
- server.begin();
: c* G- [ ^# H, e) t; | P: J - }
5 w* X5 |$ W( N }2 {* F - }
2 o6 n$ M3 H4 F) Z! o7 Q - void loop() {
, j8 B6 ^% x @, O - server.handleClient();
/ a5 o, @7 r. g7 v - delay(1);) \/ x8 _: T% {( z
- }( l* }( h& K( x6 f4 @1 p
- String doGet(String url){& Y% ?1 @' C- W, @
- if ((WiFiMulti.run() == WL_CONNECTED)) {
! Z# o) I) K7 ]9 f1 s5 _3 N - HTTPClient http;2 [+ Z% H4 k+ n, r: _/ x
- Serial.println("[HTTP] begin...");& X% ~3 S" C8 F0 P) D- f. Q- t& `- x
- if (url.startsWith("https")) {
6 p; m! y% x% F9 _ j5 F% { - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 t" `2 F+ E) s4 q9 d3 J - } else {
& B* V; q4 S! v! E - http.begin(url);, v4 y9 E" J4 f
- }; d/ _1 J+ D. c
- Serial.println("[HTTP] GET...");
. H$ h; S) R4 _0 } - int httpCode = http.GET();
4 N: I( T" K+ d& \! q - if (httpCode > 0) {
% L. L% c- c* D, M) U3 _ - Serial.printf("[HTTP] code: %d\n", httpCode);
' Z# \( V0 o3 x7 g - if (httpCode == HTTP_CODE_OK) {
s. s& n+ x1 w2 c: R% V* W - String payload = http.getString();
3 Z- p5 [1 v7 U$ ^+ `; n5 F/ U& x - Serial.println(payload);' U- G( q" l. W0 {" m5 S! X8 z
- Serial.print("\r\n");4 n% U6 |+ n' v6 e" F1 f2 j2 B
- return payload;. o3 ~! w- f* P- m' N
- }
6 B- o0 Z8 w8 K1 n6 }- w2 } - } else {5 I J& w8 e9 N" L; D5 H1 n& m1 ~
- Serial.printf("[HTTP] GET... failed, error: %s\n",
: l" x- I; p, N1 I( i0 a# G+ B - http.errorToString(httpCode).c_str());
3 z+ l4 @5 \9 ~- z6 H - }
8 t5 k6 P" F- A7 t/ ~ | - http.end();
! d- x$ f4 j6 J& t5 w1 s: H" T - return "";! ^9 I8 b# _, x
- }; W$ l4 y, s0 N6 ?+ [* Z) z
- }# p+ M% _* \3 Y- O( Z, V( m& C2 A/ j; \
- void mainAction() {4 D- k; @$ l0 B k* e, Z# c
- // 发送请求7 \3 O; A( I3 I: ]3 c
- doGet("http://google.cn");; `, A$ ^2 b+ y- L& @
- }
+ e. @5 ^$ }0 j5 b' m
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