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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)9 H9 Z( S0 V) w
- #include <ESP8266HTTPClient.h>1 j$ ~7 ~3 [9 t6 l4 v9 `) U, K! x
- #include <ESP8266WiFi.h>
! W8 F- H8 v; Q+ o - #include <ESP8266WiFiMulti.h>: A+ N; F" c* n9 P
- #include <ESP8266WebServer.h>
3 y. ~+ S1 y) c7 {; | - #include <arduino.h>' ^: o& ]4 }' z) W) u' c) J
- ESP8266WiFiMulti WiFiMulti;
0 U. Z" s6 v4 U3 h6 U' |/ W3 E' U6 T8 m - ESP8266WebServer server(80);
8 C# `- Z' d" n - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) J4 u D) a4 k
- ADC_MODE(ADC_VCC);; ?. K+ h: Z8 K6 A. M; p
- void setup() {9 x, R% }0 |8 o5 Z/ t
- Serial.begin(115200);
7 ^3 |$ `9 T9 s x4 [ - Serial.print("\r\n\n");
K4 h; a' z! T. i) A - pinMode(2,OUTPUT);' p4 Q' V6 H9 x: S1 X3 u7 j7 A5 f
- // WIFI( K D; }2 ]. I( a& a' Z- u4 a" V& I
- WiFi.mode(WIFI_STA);
8 t" z5 o# {& q X - WiFi.hostname("Sparkle");. c7 Q9 y/ S3 s7 U
- WiFiMulti.addAP("wifi ssid", "wifi password");
" J0 M0 D: e" c2 j$ k5 U - int tryNum = 15;7 `5 V0 _# H& J3 I/ D& P3 Q
- Serial.print("Connect WiFi");0 K: S+ u' b& H! W
- while (WiFiMulti.run() != WL_CONNECTED) {8 B+ E B+ |6 U
- digitalWrite(2,0);
$ N x! n3 E/ ` v; \# y& ? - delay(200);; n4 M* x9 f2 s$ ?8 Z; ] ^) ^
- digitalWrite(2,1);
( s( Y" P6 r* S" G, G1 F - delay(300);
/ W7 C; l3 s: c - Serial.print(".");
+ ]% v& E$ D; z- f! } - tryNum--;
4 ?( [# C. X6 n9 a" V. X6 t; ]8 J - if (tryNum == 0) {
, L; F$ A4 a& }1 q% T: h: n - // 1min7 T1 \$ H+ Q& t; u; Y8 _6 y
- // ESP.deepSleep(60e6);
) B) ]& r7 t; X, S9 e# q - ESP.deepSleep(0);
! D4 X4 b; D" @3 ]) G! y - }: w0 s- k/ m* @/ P
- }: y6 D5 e5 A4 T- K
- Serial.print("\r\n");% t. ^" {& X9 C! R( Z: S2 G
- digitalWrite(2,1);* ?( [, Y; m' ~: V0 P9 Z
- Serial.print("IP address : ");: X% K; T: [- p2 {0 T$ `6 q
- Serial.println(WiFi.localIP());8 C, S4 h3 {; K1 J" e6 @
- server.on("/", HTTP_GET, [](){
2 k& p- U) r3 W. T - server.sendHeader("Connection", "close");
$ i G6 \2 ~4 X4 K" B) o, ~- ~ - server.send(200, "text/html", serverIndex);# w) o5 j4 d" D) N
- });2 g2 h+ n, I/ H9 l1 t m
- server.on("/update", HTTP_POST, [](){0 Y( t4 k J* H3 r, f) V
- server.sendHeader("Connection", "close");
! B, c7 c! Q, ^! E: h/ M0 R - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");2 Z- f- t: O2 x9 T
- ESP.restart();; E) d+ C. k: |( e0 s
- },[](){2 A w. h) n, a9 v/ N& Y. G
- HTTPUpload& upload = server.upload();; L2 @: v: D- G9 {. w! U$ ?/ ]
- if(upload.status == UPLOAD_FILE_START){ E' }; M9 `" k4 ?% Y% l/ [7 I1 O
- Serial.setDebugOutput(true);) Q. y0 y( k; n$ c2 S1 k
- Serial.printf("Update: %s\n", upload.filename.c_str());/ m- Q) v7 n8 [; @! O# X! t6 T! Z( u
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;( p* Q- ]7 H4 p. }
- if(!Update.begin(maxSketchSpace)){' ?6 T! Z% H; l% M; Q' h" s
- Update.printError(Serial);1 E5 b @( K% I) F/ J' B2 J1 K$ _
- }
7 v: |, H: b1 c0 c: s3 f7 | - } else if(upload.status == UPLOAD_FILE_WRITE){8 q7 A5 _4 H: E
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* o5 Q1 i# N) I5 Y$ k5 X7 f
- Update.printError(Serial);
) q/ K) z `( x, g. u$ V3 c3 b - }$ Q* L9 z V; W- A. f
- } else if(upload.status == UPLOAD_FILE_END){6 i5 W- D$ [9 B( s$ k
- if(Update.end(true)){
0 m$ a; ]( }- k% M8 ` - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% g8 ^5 M& m9 @) C& ]8 \ - } else {% x! d- O0 w7 ?* Y4 Q# }# _
- Update.printError(Serial);4 R, l2 Q3 j: o M/ Q a
- }4 P! u: m" n9 A1 n4 i9 R
- Serial.setDebugOutput(false);, K0 P" O6 Z7 a# u) m7 t
- }
. T+ D- o$ F# ?% \1 \! Q+ H - yield();6 P ~+ v2 A9 Z Q. r
- });1 C/ U4 b8 f; P& {0 x
-
7 d q/ c4 h( I" ]7 S8 i! ~' w - digitalWrite(2,0);
4 t# d- h4 [ W8 T3 C6 n. K0 x - mainAction();
( e( p% q8 }8 S3 l* y. G - if (digitalRead(0)){
5 T: J, _" K. e3 G0 ^$ z9 a - ESP.deepSleep(0);
; h* |+ `$ Q) f0 a" s - } else {3 Q! e3 a& n$ m. ]1 \9 P8 K
- server.begin();% u2 d. U% b* @/ {
- }7 M0 Z0 W5 t$ A9 Z4 Y
- }; g: G/ m( _- d7 _) I( g
- void loop() {% R" o- g( @ i+ w1 R3 F! Z4 t( U0 u
- server.handleClient();
; |7 W- Y/ `" Q! W9 L8 {7 z - delay(1);# y% s/ ~: J' F$ J
- }; A9 }- }0 [4 {3 D* n3 V( ]
- String doGet(String url){1 i S. x6 r+ P1 X5 z( ]- z6 ]
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 A1 M5 t: }, t7 | - HTTPClient http;( i4 i& m m- l: q/ }) s9 n2 P
- Serial.println("[HTTP] begin...");
4 K2 f6 P5 ~+ } - if (url.startsWith("https")) {: c; y9 P3 a5 c6 |1 l
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; k2 j! Y% C8 R; b% Z9 @8 K0 J - } else {
6 M1 I- r5 W0 t$ U7 h1 K4 r - http.begin(url);( _1 x N8 M1 b* s' v8 g7 n* c* k
- }: n; |6 F D7 ^
- Serial.println("[HTTP] GET...");
+ {& E4 u) H# M% {' p# R; H - int httpCode = http.GET();2 T# ^& D8 ^0 E$ d% w, N' k
- if (httpCode > 0) {8 u) @2 t% Z1 |" h5 h
- Serial.printf("[HTTP] code: %d\n", httpCode);! S7 y4 f& Y" S. W
- if (httpCode == HTTP_CODE_OK) {9 Z- c5 r$ V2 s
- String payload = http.getString();
) L: n/ u1 i7 r - Serial.println(payload);2 y& Q; x/ i" A/ R' p+ ]' M
- Serial.print("\r\n");+ b0 X- j' g" f. }+ F8 P! r3 p
- return payload;/ R! b2 K+ s# n1 e& t8 E
- }9 J/ l6 ?* l7 e {( z8 h
- } else {+ k. m- R* D, k; j' I
- Serial.printf("[HTTP] GET... failed, error: %s\n",% L* Q; v. X' Q9 t( {
- http.errorToString(httpCode).c_str());1 Y2 u2 s2 w0 e, R
- }! a' I6 M0 k! B& i7 P) Z/ s. \
- http.end();
0 i$ c" q* ^5 [) K1 G) G - return ""; z2 K* J" q: ~; V8 x8 ^7 H e
- }
. V r l2 U4 Z3 P" \ - }: B1 ]6 T& C: g2 I1 n) ?
- void mainAction() {+ n7 {, d% a& X$ l" |. V
- // 发送请求( ?6 Y5 b* s; K1 q% k8 C9 L$ C( ?6 Q
- doGet("http://google.cn");% ?. e" w( F+ c8 L" `
- }0 p* i/ q: ?. J0 R7 a( j
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