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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)6 l3 o. L& V8 s0 h
- #include <ESP8266HTTPClient.h>
$ L4 b3 J! S6 t8 s% S- ?* s - #include <ESP8266WiFi.h>
2 b4 P/ i' q, s& U - #include <ESP8266WiFiMulti.h>3 i% l7 G1 h% u8 Y5 A
- #include <ESP8266WebServer.h> ^% R2 L9 f- s( a
- #include <arduino.h>
. c! i1 u3 h+ e; O - ESP8266WiFiMulti WiFiMulti;
1 ]0 |9 O2 a v+ X9 e& g% q - ESP8266WebServer server(80);
2 Y" G. L6 I/ _7 @1 ]5 t ~9 Y - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
! L9 d0 q3 I" ~* X - ADC_MODE(ADC_VCC);
# W3 i9 K' e/ u - void setup() {% M9 {% }- s% I2 U4 J- ~
- Serial.begin(115200);: h1 @0 O9 Z# x2 ]/ k
- Serial.print("\r\n\n"); B f, U- K0 h! H4 F" G" j
- pinMode(2,OUTPUT);8 ~- l! [; x x6 c7 K- t/ ?
- // WIFI. L4 \( R" W/ I% j W
- WiFi.mode(WIFI_STA);
( e [7 A. a( @, S' G8 E - WiFi.hostname("Sparkle");
# T$ o! _# I0 C! C& e$ [ - WiFiMulti.addAP("wifi ssid", "wifi password");
$ `6 c) G/ v, A6 ~% E - int tryNum = 15;- d3 y; O1 }/ o4 n/ T
- Serial.print("Connect WiFi");
$ Z5 z: z* Y6 v, ^( Q# N& Y - while (WiFiMulti.run() != WL_CONNECTED) {2 [; z. }) G& H' I
- digitalWrite(2,0);( Y8 X( f1 G/ I5 m
- delay(200);
8 Q. D+ p, u1 E3 Y' h4 A8 I) o& J! ` - digitalWrite(2,1);
9 [: ~! m: e1 n ?0 ~, n - delay(300);6 K1 ~: K6 [$ E' k4 f- Q6 D) @
- Serial.print(".");% _( t: G% H% S( l$ x
- tryNum--;% v% h) F' a5 y: }5 Q1 i1 ?
- if (tryNum == 0) { B& i: d% U% e, Q# P
- // 1min) t( u i8 U2 ]' x: p% `
- // ESP.deepSleep(60e6);5 [+ I E/ B% u8 Y$ X9 W" S
- ESP.deepSleep(0);
0 a. Q" e4 L+ Q! G - }# y; n) ^5 {7 U, k+ T2 z
- }
. R$ _! D# ^" @ - Serial.print("\r\n");1 P0 e# h$ ~! h0 M
- digitalWrite(2,1);+ s$ R5 c$ S' D, y
- Serial.print("IP address : ");! G5 c( M- E9 m1 n5 e3 Z
- Serial.println(WiFi.localIP());% l$ K3 R1 J K0 @
- server.on("/", HTTP_GET, [](){
; {9 e/ o* P( D) D% ~' x - server.sendHeader("Connection", "close");
( b: F+ A$ K. R* ^. c - server.send(200, "text/html", serverIndex);" B. V }. _. U6 |6 v( V5 F1 C
- });
4 h" _$ X* v; J' X' ]6 ] - server.on("/update", HTTP_POST, [](){
( i1 ^ _2 a% v5 |% [ - server.sendHeader("Connection", "close");6 A( z4 r) z2 k4 T
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* c+ C; q- i: I, x; k$ k1 _
- ESP.restart();
, {; m& m: }& X Y, F7 {0 T - },[](){
. K# \8 N3 o; [' `+ v- J - HTTPUpload& upload = server.upload();( i! L6 Y' p' z$ \& g# A4 v
- if(upload.status == UPLOAD_FILE_START){
, t( q0 {4 D8 I - Serial.setDebugOutput(true);, P8 _3 P. `3 x# f" O! b2 m% `8 x
- Serial.printf("Update: %s\n", upload.filename.c_str());
8 h, D# X3 |3 [& ? - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- f" e: L9 c2 q
- if(!Update.begin(maxSketchSpace)){7 q" H( c" a$ N' b+ W
- Update.printError(Serial);
: B. X7 g: g% K+ V0 V - }! g( B* z! ^; `" {! L U: r
- } else if(upload.status == UPLOAD_FILE_WRITE){1 N' e. K+ H2 T6 K% E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){+ B/ R& n% s/ ^
- Update.printError(Serial);
9 t( c/ T( t, G - }$ ]5 ^0 ^9 J+ G$ J- ^- D* _
- } else if(upload.status == UPLOAD_FILE_END){9 l2 w! A1 D; H& B
- if(Update.end(true)){1 b1 f9 f( q. {8 |: k2 U* `
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); F0 c, O) F1 {: _
- } else {
( G9 m/ d" u1 d R7 S - Update.printError(Serial);
- _# n/ t9 W2 m/ W9 K6 z6 F - }7 a3 M- t0 L% r. _* v& m, t
- Serial.setDebugOutput(false);2 n7 h) n5 S: O3 D! c
- }
) o# s; ?# L7 q% h# ` - yield();$ X, q+ a% H8 I$ o5 \
- });' K9 s3 ^2 j* u) K
- . }5 K1 v" p; P! U: |8 D
- digitalWrite(2,0);
: @& R3 n `; {0 H - mainAction();+ }3 Z8 V& G) z* C8 T& Z" p
- if (digitalRead(0)){, s6 m' I5 ], Q, D; F. ?
- ESP.deepSleep(0);
( ~% t6 |) {$ v, @: F; Y - } else {5 {. @) }: m3 S% ]
- server.begin();
1 L- l/ w7 j! W1 Z5 M' l - }
; R+ }% s+ _, [" o1 S- i, w - }
5 n) u6 g* z8 d# o) F - void loop() {: ^$ b% u* E) C: j0 B4 J
- server.handleClient();
! ?+ b' |! J s# K6 U - delay(1);
+ [- Z! W! I' M/ D: ]0 S9 q I - }5 ]% [' T& Q. x% S3 f9 c# D
- String doGet(String url){
" _# E( i/ h9 ^6 E - if ((WiFiMulti.run() == WL_CONNECTED)) {/ y& z1 z' f: L- v( \% c6 s/ b
- HTTPClient http;% D: s ?: Z1 D# C* Y
- Serial.println("[HTTP] begin...");
8 V' D6 `6 h$ A0 s% s; C - if (url.startsWith("https")) {
k) n& d0 z4 l" L) W$ ` - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 _7 o0 R& [' I# P0 O
- } else {7 V- ~- `4 y, |9 U; ?' h- J: z# }
- http.begin(url); }' R# w: K6 h0 d# T
- }
1 w& Z) @1 S) j& c9 T# k - Serial.println("[HTTP] GET...");
* s6 g& O, V, W ?/ J - int httpCode = http.GET();
. C( _" D$ A' g+ q9 _! ~# g' I1 ] - if (httpCode > 0) {) _; G$ \6 ]! E# _; L' }4 `" m- w
- Serial.printf("[HTTP] code: %d\n", httpCode);- D) q& e$ t" S" L% G3 U& ^
- if (httpCode == HTTP_CODE_OK) {9 a! k6 s) k* Y* k& m2 S" X4 s, |4 U
- String payload = http.getString();
1 {9 |8 y4 E V2 T5 U- F2 h5 G: M - Serial.println(payload);
! ~* S1 T r# _ - Serial.print("\r\n");& j/ s6 a9 J7 H1 u
- return payload;2 `2 c3 }, G! k3 ^! d# z7 P
- }9 n) v5 r' a6 F, F
- } else {3 `% _) I# H$ V# u6 N
- Serial.printf("[HTTP] GET... failed, error: %s\n",
9 @& [) N4 W- C/ E4 N - http.errorToString(httpCode).c_str());
! I' e1 I& h/ M" I4 C: h' e; _: O - }9 h- [7 M: N# b+ Z$ q
- http.end();
( B: i, R: C- I2 E1 _ - return "";
, w3 E9 B: `, l4 J - }. ]: n9 K! ~# ] n) K( T
- }; a* e' V6 n7 Y' K2 ?. u, N. V+ W
- void mainAction() {
# \( A& p9 b2 `+ t( Z4 }$ a - // 发送请求
' P! p/ i' s. h. | d - doGet("http://google.cn");/ y6 W& l, a$ }' S- h2 n
- }* W4 m3 F- t& E9 J
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