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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)
) |0 o+ p) b% k( K3 P% k- #include <ESP8266HTTPClient.h>
/ m8 ]) {' `/ v0 g, W. W - #include <ESP8266WiFi.h>, ?! C4 F# [4 Z G' E
- #include <ESP8266WiFiMulti.h>
. o# v& j7 `% u5 b% x& l - #include <ESP8266WebServer.h>
( n# t0 E) m9 h8 C$ M( j - #include <arduino.h>, P- L e' w/ b6 x
- ESP8266WiFiMulti WiFiMulti;( B" M8 E; r/ x* t/ a( C8 N
- ESP8266WebServer server(80);
! ?( W8 @ C% g: S |& C" B$ C9 p - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 V, y. y# t) e5 q( U
- ADC_MODE(ADC_VCC);( w- `6 i1 H" X% K# u3 X2 z; X
- void setup() {
3 S+ [8 B5 m# p/ W& j - Serial.begin(115200);6 e7 O1 Y5 e/ s2 k2 Y
- Serial.print("\r\n\n");
# J+ D w N0 Y0 d+ a: S y - pinMode(2,OUTPUT);+ W( f$ e* k4 R$ w/ G
- // WIFI
. B# n1 n! Y# w5 F% i - WiFi.mode(WIFI_STA);
6 a* R# u, s+ R$ u" \/ g - WiFi.hostname("Sparkle");
( `2 b5 u8 q' c" C2 p6 p - WiFiMulti.addAP("wifi ssid", "wifi password");
/ {4 F9 ?4 V. ^/ O- {5 c2 Y$ }* t l - int tryNum = 15;8 `4 y% u+ N- J% a B# P
- Serial.print("Connect WiFi");
$ A! w. g4 u# W - while (WiFiMulti.run() != WL_CONNECTED) {
' \4 n& o. D' L - digitalWrite(2,0);" ]8 ?) y0 Y+ ? N& o
- delay(200);
2 O6 h& v/ W6 P/ \* { - digitalWrite(2,1);2 \4 f2 s+ O" n! w( U: I$ l
- delay(300);
( q( M4 w7 I9 B- P - Serial.print(".");
% B" N6 ~4 ~; U1 B' j$ W - tryNum--;
- k u; u5 f# r+ O8 l: R - if (tryNum == 0) {) N3 c, | t4 r) f% }
- // 1min. y a( b; A! L: i2 a+ i9 v' j# c
- // ESP.deepSleep(60e6);
, G0 u; M$ \2 @/ U4 l1 [! c; y# ^ - ESP.deepSleep(0);9 l0 x" v! ?% G1 V4 j) O
- }
- S# ~. {5 G- O7 L/ P6 W0 Z9 t - }
; P" u' l! Z: L - Serial.print("\r\n");
! i$ ^: A$ u% e - digitalWrite(2,1);
3 u5 D( `) x% H - Serial.print("IP address : ");6 L; S# W# X G- z
- Serial.println(WiFi.localIP());
9 Q8 ?% l$ a/ G: a$ w - server.on("/", HTTP_GET, [](){
, ]+ j b `5 n+ ]3 J - server.sendHeader("Connection", "close");
+ O$ l4 p0 C; g W7 s5 b7 F2 k - server.send(200, "text/html", serverIndex);
# X0 f) j; R$ p - });- k* l5 U" }6 W- Y2 O+ k. |
- server.on("/update", HTTP_POST, [](){
7 k8 q! F. o9 q1 O0 D, j: m - server.sendHeader("Connection", "close");$ Z; \7 I2 |' I5 z% C. g( j
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. m. L2 H/ k2 w# g - ESP.restart();7 E/ \# r D+ f+ V
- },[](){
; Q9 u( a6 ~$ `; _5 Q% \ - HTTPUpload& upload = server.upload();, q- A. g* M* A
- if(upload.status == UPLOAD_FILE_START){: D* f& h- e. [+ g
- Serial.setDebugOutput(true);1 V! A; ^1 k; E U6 _$ h
- Serial.printf("Update: %s\n", upload.filename.c_str());4 K: P! Y6 M& W' v& f- Z% C
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 S6 K* s6 ^' V, \, u. M; P" E
- if(!Update.begin(maxSketchSpace)){
% t: [- j- Y7 {% ~8 G4 C - Update.printError(Serial);" j- g9 P4 u% T6 n& D+ r1 q! y, A* u
- }8 C. j r8 u: @( T7 k
- } else if(upload.status == UPLOAD_FILE_WRITE){
0 }2 d }2 Z- _ k4 z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, C% a: ^ j1 W3 t( G! `0 f2 H - Update.printError(Serial);( x' X+ ]& Z9 J+ f( j' h
- }
/ m# O5 |% \ d5 Z; P! r - } else if(upload.status == UPLOAD_FILE_END){& ]' f6 B. b7 `
- if(Update.end(true)){0 _3 H9 M: R3 e3 E. W1 r% g
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ R% ~+ a7 c; ^2 Y( W& s - } else {* G9 ]6 S( I8 o! N7 O2 ]
- Update.printError(Serial);+ s% V2 a' s' i1 z# j
- }
* E8 p7 C# X5 J) Z! i& C8 O, w- ? - Serial.setDebugOutput(false);
( I" X' H9 ~3 s: B2 i A0 E - }, [: n4 Z! Y: m: p
- yield();1 c9 a2 H& s* [& `1 ?! l
- });
+ ~8 Y2 @9 J8 Y, y+ ^: y -
7 `* A# W9 {' f4 s - digitalWrite(2,0);
' E) [+ s7 }) ~0 k5 p- M - mainAction();: d- p" W, O- L# K9 s: Q6 v
- if (digitalRead(0)){2 X0 M: A) z- R/ v; e
- ESP.deepSleep(0);
( [- r/ ~- H. M! A6 F+ }* w - } else {7 T8 H( P! g# o' ^
- server.begin();
! W) n. p: I9 |5 o. n - }
1 y& [5 r( U2 I P - }
8 ^6 ?8 g" C" P3 G" k8 t - void loop() { [, r g* }& W! S
- server.handleClient();/ I: n; w/ L* S* \! z! r% d
- delay(1);
/ V/ E# F$ v% j8 g - }
) w! l8 E8 r7 |. S8 g - String doGet(String url){
* u3 s6 T. ~" ~; W - if ((WiFiMulti.run() == WL_CONNECTED)) {- n! f0 u. z9 B, b
- HTTPClient http;) q; w" T" x5 Q: h; z6 B) L
- Serial.println("[HTTP] begin...");
- I/ E \' b, n - if (url.startsWith("https")) {2 j$ ~8 b9 q: `, J6 \. Q- A2 z
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% x* P+ [) \8 h$ f# m/ u
- } else {. Q" @* Y/ Z* [4 h& w
- http.begin(url);, Q/ ?) D& a% I, L; N, G: V. d9 K
- }, I! t) i2 N4 e1 z
- Serial.println("[HTTP] GET...");( U8 j* n3 w$ z$ n" S6 a
- int httpCode = http.GET();
9 e' ?1 t0 i! J, e - if (httpCode > 0) {3 B5 j, R+ J0 q) W- z
- Serial.printf("[HTTP] code: %d\n", httpCode);6 z, k7 H* Y: \; W
- if (httpCode == HTTP_CODE_OK) {" M4 m* _1 ?7 q; ?6 W7 U1 Q
- String payload = http.getString();6 p+ ]0 V A6 ?& y9 R
- Serial.println(payload);/ `6 T0 \- ~" i. M! v. M, }
- Serial.print("\r\n");
2 _' t% C/ O& |- Q - return payload;% |9 C ~2 b% ?# p# Z
- }: I6 @! s ]8 |& C
- } else { I7 h& O b$ k3 T
- Serial.printf("[HTTP] GET... failed, error: %s\n",* a8 |0 p6 b. v9 S
- http.errorToString(httpCode).c_str());0 l3 q6 x2 j: l& J# h. ~% N. i& x
- }
$ `& @! q. b1 O' L4 I9 M# G0 R - http.end();
! X7 E2 \2 M; k0 k& J - return ""; ?. L: j/ ?4 p: o9 Z8 t
- }4 t; s" W' f6 m- J. {9 D( O$ Y
- }
4 ^0 ^ A5 X+ C& [ {- @ - void mainAction() {
6 g) ]! l0 a# |$ a; t- m - // 发送请求8 a: R6 i1 l v, I+ n
- doGet("http://google.cn");
+ _5 E1 S' M- B$ k - }+ D) P2 }! {7 t {( [
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