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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 e9 m" _; w; S' ~! }2 m$ ~' k- #include <ESP8266HTTPClient.h>
6 @8 S" i) _( M- \6 t - #include <ESP8266WiFi.h>! U. B+ e d' W, h y) U' f" o; o
- #include <ESP8266WiFiMulti.h>
2 Z1 o7 n+ d' z8 M$ S# N - #include <ESP8266WebServer.h>
6 b- t! X3 P. M: q - #include <arduino.h>
+ q4 _% O- E: U0 U; P, @ - ESP8266WiFiMulti WiFiMulti;. {, T1 Q& V, w1 g
- ESP8266WebServer server(80);; c0 M8 n0 Z) E- y% J
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";! V' p: ^9 f- z; w5 I' |) H+ _/ B* ~1 W( z
- ADC_MODE(ADC_VCC);8 V7 S) P+ X, i. R/ _& y# c
- void setup() {
2 \8 H/ {; R1 M& M+ [ - Serial.begin(115200);6 K7 I1 y1 v2 S
- Serial.print("\r\n\n");
% D7 w, ]4 I% \ j- x9 N - pinMode(2,OUTPUT);
- i0 ?" I$ w# ^- f - // WIFI% j) J; X9 S' I5 ~; K m$ t3 P
- WiFi.mode(WIFI_STA);& P5 ~) U1 y* M
- WiFi.hostname("Sparkle");
. E* R* e* X& s' l' K) x/ L( ]( N - WiFiMulti.addAP("wifi ssid", "wifi password");
) v; t/ L5 i m0 Q% M( N X - int tryNum = 15;
! C1 [/ y F M - Serial.print("Connect WiFi");+ J ^1 r6 g* T' I
- while (WiFiMulti.run() != WL_CONNECTED) {
* e+ F1 T$ x% c3 U - digitalWrite(2,0);
$ a8 A% C9 W8 K5 o% D: i - delay(200);
2 W( |8 I& R8 i3 E/ }/ S2 F - digitalWrite(2,1);
& N: O4 C! h8 k) x - delay(300);
* K/ l0 r4 q1 C( D! ^4 _! h ~ - Serial.print(".");- d: [* H% S7 `' w3 K
- tryNum--;1 |% g& V5 {2 V1 S3 }
- if (tryNum == 0) {
# u" N+ X- B! p$ g - // 1min( d" [( R' o( e4 l! t
- // ESP.deepSleep(60e6);
3 X/ Y9 ]1 @* c: k) U4 ~- J - ESP.deepSleep(0);
4 `2 | w( \& q! @0 H0 ~6 _/ \ j - }
: W& P" O5 H% C4 f5 b6 K - }
: }* {$ \ C& D( A; M/ H- W6 x- L - Serial.print("\r\n");* J3 n3 t* p( \; s! w* l$ i h
- digitalWrite(2,1);
: V) w8 k# j# u3 D* ^ - Serial.print("IP address : ");
. N' z# K2 `% G - Serial.println(WiFi.localIP());; A, Q) k0 F" z" @& x
- server.on("/", HTTP_GET, [](){$ N( j# }: I( g2 u, c( \
- server.sendHeader("Connection", "close");* E/ o1 t8 Q5 p4 b. N. X
- server.send(200, "text/html", serverIndex);: W6 E; U; k' ]5 j" D1 {$ x
- });
1 o3 w% N# G: X: o) p! Z1 r - server.on("/update", HTTP_POST, [](){
" b6 y0 G+ G9 D9 p - server.sendHeader("Connection", "close");0 Q) Z. V; D1 l0 P/ o4 I0 r3 p
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# B- |' C( Z. Q. f+ r E4 J9 ~ - ESP.restart();4 j) x; Y6 I6 B7 p3 w6 R! Q2 p* |
- },[](){
$ k) U6 M- e& i6 G% @6 b7 m - HTTPUpload& upload = server.upload();
3 A8 T' ] K" C - if(upload.status == UPLOAD_FILE_START){
0 i% [/ [5 A& I6 ~ b - Serial.setDebugOutput(true);# S1 s5 d ]+ z7 d
- Serial.printf("Update: %s\n", upload.filename.c_str());# K$ w: q7 ^4 K( G! b! |, K5 T
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* b- U6 @5 C9 X4 l6 L
- if(!Update.begin(maxSketchSpace)){
# d6 ?" B a$ h5 N1 i0 P - Update.printError(Serial);
- c( X4 w/ t# Z _2 x) G - }- r; n. K% r2 f% m ?% T
- } else if(upload.status == UPLOAD_FILE_WRITE){* R' \+ j, M9 A& [) k
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# i9 F( B# B$ G4 e. C7 g' J
- Update.printError(Serial);
3 c e5 X u6 W3 G, V4 w - }
& H) o, P7 J/ D5 F! \2 D - } else if(upload.status == UPLOAD_FILE_END){$ g) p4 P, L/ F0 D
- if(Update.end(true)){
$ [! ~1 f o0 F5 L9 a - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* V P- G( t+ y% r0 g8 g6 A
- } else {' T6 `5 d* e% j" a; t1 A
- Update.printError(Serial);0 m* ]5 N5 Q" I. D4 T* c: Z
- }0 e1 f: ]$ ~. t: w! ?/ t! e
- Serial.setDebugOutput(false);
" U9 H9 P1 E& Y2 V- a) F. t - }
" @* {2 @5 B. _2 b) ~: ` \0 n - yield();" X0 T4 p; W! d+ C# T/ ?) \( {- Z
- });) B _1 N2 @: j6 N$ q7 ]- v
-
: x' c4 `2 C% ^% ? i3 _) z# y - digitalWrite(2,0);
) ~4 B! a0 P+ W8 S8 w" L* \* m - mainAction();
' h u1 ~/ Z) H$ a+ Q t - if (digitalRead(0)){
; O+ s6 p0 l w - ESP.deepSleep(0);/ b. d* z& y" f( t2 P6 U+ f/ W
- } else { B% y6 W, z% F! m
- server.begin();
+ u v: ]( @% b9 ^8 q - }
9 h' _) s" C o; _! f - }, F& V# ^6 z& b+ L
- void loop() {+ O1 ?5 K4 w9 }$ ?! p
- server.handleClient();
" l! D* K1 ?6 u - delay(1);
; r8 A0 f0 m6 w& r+ ^4 W; r$ D7 M+ G - }
) H+ b: v5 W6 w9 c \2 Q - String doGet(String url){
6 {* `8 q5 | G& h3 X( L, } - if ((WiFiMulti.run() == WL_CONNECTED)) {
) v" C# ~& o, t# J - HTTPClient http;% ^! w) Y# i1 @3 {, }
- Serial.println("[HTTP] begin...");8 M7 Z. x( i9 q4 m
- if (url.startsWith("https")) {
/ h1 P" ]6 [* Z* n; a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
3 B' {" j9 e6 z. A Z! g9 ~: _: ~; C - } else {
. o; C% |2 F! o1 _' e, v$ I - http.begin(url);7 f+ v) i/ |' B% ^# U
- }$ T$ a' `( H! [4 `. R& u
- Serial.println("[HTTP] GET...");/ |, S, T& ?, m2 U: s& V
- int httpCode = http.GET();6 s, i) u+ F# P" M
- if (httpCode > 0) {; S3 a+ ^2 g, v1 H7 k" [
- Serial.printf("[HTTP] code: %d\n", httpCode);9 | y- o2 ~. V. W) y" w u
- if (httpCode == HTTP_CODE_OK) {
% x: T0 f/ L9 ^! K* u; ` - String payload = http.getString();2 m) _( G# }& J% L% [! z
- Serial.println(payload);; T' K' \ s* F. ^8 F
- Serial.print("\r\n");4 T9 J" y0 Y- C8 y' P# m
- return payload;% C! L# t* ~# p3 R8 D
- }6 }! ?3 O7 x: F: Y8 w
- } else {( }7 w& a1 E4 P
- Serial.printf("[HTTP] GET... failed, error: %s\n",5 s) r. P& B% @5 d' q
- http.errorToString(httpCode).c_str()); R! {' J0 k( Q9 F! \) e
- }+ c& ~6 T4 m% t
- http.end();9 C$ b' w; u6 S& B
- return "";
# ^; \+ D7 B, w- O - }
! d6 ^4 [: A# x& T" F, [ - }/ t1 W7 P5 m: F: F1 ~1 b
- void mainAction() {
( k H+ o! g9 t8 M% ^, Z: B9 N7 I - // 发送请求, z6 s+ ?# ~: \9 c. {
- doGet("http://google.cn");
5 ]8 I* l( o; V5 X8 P, { - }
2 A( h$ X. q% o. ^: m& _
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