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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) o F |( f+ z* S7 E# A6 B
- #include <ESP8266HTTPClient.h>
. R" J4 W+ }2 k- k - #include <ESP8266WiFi.h>2 X( |% `% q' H7 y
- #include <ESP8266WiFiMulti.h>$ W$ B& v5 v2 C/ U0 m
- #include <ESP8266WebServer.h>
! L4 q8 ]. l6 Q. L) C6 i - #include <arduino.h>: K+ x% A* s, z) P+ u& n
- ESP8266WiFiMulti WiFiMulti;0 H! L7 ?4 T u7 u9 ?
- ESP8266WebServer server(80);
7 E7 } H2 X- { d - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
l! t4 d; ]. b - ADC_MODE(ADC_VCC);
- `8 {" T" b2 o2 \2 @ - void setup() {# T% R0 }& P) C C
- Serial.begin(115200);. s [5 A0 Y- l5 Y R3 ?0 z7 a
- Serial.print("\r\n\n");
* {+ U- r1 B y$ O3 H - pinMode(2,OUTPUT);1 g4 t' B" B8 @. h
- // WIFI2 V' F2 O$ o: O8 k- [4 V
- WiFi.mode(WIFI_STA);
+ g8 e5 w. \1 w# y- [) c - WiFi.hostname("Sparkle");
0 O8 D3 F" l) D& ]3 T* n- a1 S' M) b$ X - WiFiMulti.addAP("wifi ssid", "wifi password");) _. U& F$ I# h9 c6 r
- int tryNum = 15;
3 n0 R1 E3 J5 w3 h4 h3 G" S# G4 b) o - Serial.print("Connect WiFi");
0 d* ?, ^& w% Y! \4 s - while (WiFiMulti.run() != WL_CONNECTED) {2 Q' M. V% S3 H! A* o
- digitalWrite(2,0);
& g* O a( k5 X0 Q6 l/ M - delay(200);
* k- t+ B: f! D4 H - digitalWrite(2,1);: `% n% [% C4 N0 Z
- delay(300);9 U! x s7 H& `
- Serial.print(".");( G5 w/ R | Z5 M" [9 e! j
- tryNum--;
& ]! u) \* n6 l1 U - if (tryNum == 0) {+ ~/ F/ c L" k$ p% h1 j2 v
- // 1min
! I5 _9 B% v) N+ ~( L - // ESP.deepSleep(60e6);
0 r; b- B5 Y2 E - ESP.deepSleep(0);0 b; }- g4 T. \5 ?! s: ?
- }# ^9 G1 q3 K5 A" L8 W: \- E
- }
4 q/ ? ~ c+ ^# s - Serial.print("\r\n");9 R0 C! i3 O D6 G0 ]
- digitalWrite(2,1);" N7 B5 R4 F U/ t* A8 ^0 s* `
- Serial.print("IP address : ");) E: r, h' ^/ N" h* A
- Serial.println(WiFi.localIP());
- D/ I) {" L! {6 W$ u - server.on("/", HTTP_GET, [](){" V, J+ n1 g/ `
- server.sendHeader("Connection", "close");$ r- Q$ z& Y9 J8 ^& T S
- server.send(200, "text/html", serverIndex);
' N7 s& W+ A+ u, _ - });7 ^6 B+ F _, L5 H2 m, s, J
- server.on("/update", HTTP_POST, [](){1 s, u" C/ _- {; C$ w
- server.sendHeader("Connection", "close");5 U3 y: Z8 U' ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
% I' B9 U$ J @: R f% ^% x% c - ESP.restart();
% o! s' R2 T- d4 M2 F6 r0 i - },[](){
- k \" U) U1 N0 W - HTTPUpload& upload = server.upload();
" f/ z/ a5 ?2 @' {: y - if(upload.status == UPLOAD_FILE_START){
2 m5 ]; }/ ^' k4 M1 X5 ~! Z; M- g - Serial.setDebugOutput(true);
/ k6 l2 _* [$ ?1 X, r9 T - Serial.printf("Update: %s\n", upload.filename.c_str());
5 a6 E& J2 W1 A/ t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! c" s: p0 ]9 `' [: S - if(!Update.begin(maxSketchSpace)){( v6 F, f# M7 b X
- Update.printError(Serial);
, v4 U! M% N% l- p. y3 b - }* Y% S$ k. O, x% `$ v3 d7 K- H* L1 @9 P* @
- } else if(upload.status == UPLOAD_FILE_WRITE){1 J/ T+ y2 C6 U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 X% E( n6 B7 ^. p - Update.printError(Serial);
( G+ ^# _4 W: b8 M! v7 L+ m - }/ K3 e( x6 K6 K$ L y
- } else if(upload.status == UPLOAD_FILE_END){
9 ^- v% o1 b: n - if(Update.end(true)){5 r3 l z( a& g/ C9 l1 }4 c1 g
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' C; Q/ d. n) M7 {3 d6 J - } else {
' a6 T, u7 l) c6 ] - Update.printError(Serial);4 }5 L& K( }% b2 \3 D t" _
- }
: e. W6 z2 |; s o/ O7 m - Serial.setDebugOutput(false);
! ~! y4 Y2 r5 S7 ? l/ c - }! ~9 N5 ?1 H" a3 S5 |' d0 V F
- yield();' V ?. I) z3 i6 m% l3 J: s2 Y* b
- });! A9 Q n' U4 G1 N; K! X
- 5 Z! R; @; T" {% ^# [( M
- digitalWrite(2,0);1 _3 A1 T! M5 r; k
- mainAction();* q; y0 v' L) Z: m4 {
- if (digitalRead(0)){# I( S k0 R: {$ P7 G
- ESP.deepSleep(0);
1 s2 o7 s8 Y" J* D3 j& Q5 |( q: j - } else {) n! s( P+ P$ D+ U8 Z5 S7 `2 O: ^
- server.begin();
5 _1 o8 r+ F+ m% b6 |7 ` - }
' A% L. w$ Y T) d% H- {. N& @ - }
! ?; r3 {/ L" s5 F - void loop() {
: d: Y1 _) r' ~* E8 `6 t - server.handleClient();6 b% ?# [- z b7 p
- delay(1);
* E; L. b/ F3 }& h6 S- K - }+ @6 o7 }2 g4 K
- String doGet(String url){
0 i- W3 H% A6 h5 A5 s - if ((WiFiMulti.run() == WL_CONNECTED)) {. z7 h# p( Q* G: {& v. V
- HTTPClient http;
% w1 i& o4 P" s: j - Serial.println("[HTTP] begin...");
% H/ n: A4 \2 O - if (url.startsWith("https")) {
; J) K) e" w9 _) ]6 W+ v - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
h, W3 S0 t; @( D P) _* F' k( h - } else {' G; C0 |) w W0 @& R! B, Q i" s
- http.begin(url);
! b0 |/ Z" o/ X I2 i5 b+ K - }
, ], m* h) L/ K. X6 q& ` - Serial.println("[HTTP] GET...");) Q2 p) |0 z; M# `/ T
- int httpCode = http.GET();
" i: B% [6 G' H& f/ i$ i - if (httpCode > 0) {
0 [8 @$ d/ z( [# V. K - Serial.printf("[HTTP] code: %d\n", httpCode);0 g+ u% _/ Q9 n# }/ Q" S# U) ]
- if (httpCode == HTTP_CODE_OK) {8 f& E, B/ s3 j% E8 D; g. ]
- String payload = http.getString();
3 [' ]2 \( H8 e4 P - Serial.println(payload);. N5 b/ e# q% z* ^, K( r
- Serial.print("\r\n");
4 W& q. _8 S5 p) ^. o7 l - return payload;+ r1 |- |9 C+ R9 |8 d
- }( P; k) v. u0 O8 f
- } else {1 t u6 X; i9 |% o# I' F6 ^
- Serial.printf("[HTTP] GET... failed, error: %s\n",; Z2 b. q4 Z6 ]: G) M4 J
- http.errorToString(httpCode).c_str());, J- G5 X, c; B$ |2 n4 t
- }
% I5 g* A# k1 ?% c. b' Z' D1 n - http.end();
5 M! b% h! H( h! i# k. \ - return "";4 \& \0 E* P7 ?( ~( v$ j# f; ~
- }. b9 {/ U! z9 E$ t) R( U
- }
' V5 ?& ^6 s7 T0 v6 r' \ - void mainAction() {! n b! O% d- a* V, X
- // 发送请求
, Q: q( n2 N* k- y- [% ?8 e7 b - doGet("http://google.cn");, F5 b- \' Z. ^2 u9 F1 K
- }
0 |4 Z8 h; u: V0 b
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