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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)3 D9 b! Y6 o. e( h5 q
- #include <ESP8266HTTPClient.h>
- o, N0 c3 k# L - #include <ESP8266WiFi.h>
7 i6 I2 W2 k+ x) o& Y3 e: z - #include <ESP8266WiFiMulti.h>
" h4 H3 x k5 b: ]0 z0 b - #include <ESP8266WebServer.h>
7 J2 f9 ]; R8 t! j0 |. {. T+ ] - #include <arduino.h>
+ u t1 i* @) O( F. q - ESP8266WiFiMulti WiFiMulti;
L3 m1 J3 q6 m8 e - ESP8266WebServer server(80);8 x7 h5 B. ^7 J1 U% i
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" C. u; B* X: ~- b( ]8 c% x0 f$ a' w
- ADC_MODE(ADC_VCC);0 b, M# o( C" A' [- R
- void setup() {
. N; [9 R* I( H/ Y- D - Serial.begin(115200);. q" ?" b! A% v/ T. X
- Serial.print("\r\n\n");8 k. E0 O: g: |& q) \+ r
- pinMode(2,OUTPUT);+ n* I0 B4 P |% r2 j
- // WIFI
2 d3 L+ j2 ~# q9 C: V. y& d - WiFi.mode(WIFI_STA);1 S3 z- T4 G+ ^! @
- WiFi.hostname("Sparkle");
t3 e. ^# M% Q* m4 ^2 x5 O - WiFiMulti.addAP("wifi ssid", "wifi password");& U0 V# w: B b; \& H3 I
- int tryNum = 15;
- t" T& s) F9 g k0 N" Q5 l - Serial.print("Connect WiFi");& T( F$ V) g6 w9 F f2 b
- while (WiFiMulti.run() != WL_CONNECTED) {
% [# H. n V2 o/ m' l - digitalWrite(2,0);* a! f( ]+ B; B# u9 i1 _
- delay(200);
2 C. D1 J( I( g& S& N; p! h$ L - digitalWrite(2,1);
' |5 d0 ?) f5 b/ V% f0 f - delay(300);1 r, ~5 A6 V3 C' d( V
- Serial.print(".");0 e5 x4 z! _# ~4 O
- tryNum--;
7 O1 P; E. W5 B - if (tryNum == 0) {
% e2 W+ @/ R$ s& _, o5 q - // 1min
4 {* q$ W( B) A5 c - // ESP.deepSleep(60e6);
) l& ?# C; Q, L2 W' z - ESP.deepSleep(0);0 L% ^( W) v- O0 e
- }8 j3 M' g2 @4 ~8 b" E8 y
- }* D6 [+ S0 N9 u& z- U' ?* V7 b
- Serial.print("\r\n");
M# |2 N' m0 H, c2 S/ a9 W4 o - digitalWrite(2,1);
+ f! N% F/ R' O$ y3 D0 ~5 T. V - Serial.print("IP address : ");
9 x% P- E1 L- |0 ?( Z - Serial.println(WiFi.localIP());* k* v# s8 ]. I
- server.on("/", HTTP_GET, [](){6 r. [" P0 M- A2 w- z' E# s
- server.sendHeader("Connection", "close");8 k. V/ h) F& B* ?4 T6 q- s
- server.send(200, "text/html", serverIndex);
% q9 O6 m0 [( {/ e! e) S - });
' X& T: J' x8 L( S% n0 a, T% X; A! K - server.on("/update", HTTP_POST, [](){' l" l4 P" L5 ]3 L1 m5 Z7 \/ f/ s
- server.sendHeader("Connection", "close");
$ h- r! o2 N- |% H - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. e4 A* s- Y/ |) N - ESP.restart();
; t Z- F: n& i/ q5 { - },[](){
" x& W* e1 U# h" d - HTTPUpload& upload = server.upload();) L9 D0 N$ z3 H5 @) B+ f
- if(upload.status == UPLOAD_FILE_START){
, R, }# r1 i! L+ \- g& [ - Serial.setDebugOutput(true);
$ K, U9 ~$ N3 _! c+ v - Serial.printf("Update: %s\n", upload.filename.c_str());
3 T9 C' s1 x. P- h1 j K1 U8 ` - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 B! c# z7 v4 D( ~3 ?& w
- if(!Update.begin(maxSketchSpace)){
9 S; ]' N& K$ k. x& { - Update.printError(Serial);. g3 E: e+ Y4 N& ^7 J1 v
- }
J( V [+ L& O* C: w - } else if(upload.status == UPLOAD_FILE_WRITE){; ?* ^0 h# {! t: q" h$ V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){; h0 X G3 s' U) r9 Y
- Update.printError(Serial);" }: s; |9 z) s. T; l
- }6 N& _8 h6 r- e! Q4 f+ w! O1 D, V7 Z+ U
- } else if(upload.status == UPLOAD_FILE_END){& a7 Z9 a8 v2 ^- x8 h& A5 E
- if(Update.end(true)){
8 Z0 W0 K% O$ T, ^7 B. G7 d - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( w: D- w2 L% u, {/ ^$ [ - } else {
6 l" h/ D" m- u5 [ - Update.printError(Serial);
# T$ r5 Z9 \6 Y1 F/ z" |& T1 J9 K - }, n: u& T/ K3 F; i; R. V% c2 s- w
- Serial.setDebugOutput(false);4 Z& D0 ^' L8 m) `
- }
* { p" p4 `& _# t: B - yield();+ V$ C: [$ T* n; z$ S) v4 V
- });
@. ^6 C6 C% Y -
% n* b3 z, U3 A9 ]; b$ a, [ - digitalWrite(2,0);5 y k b: y D2 l1 r! B
- mainAction(); Q, L6 s$ t5 A5 J( b# Q
- if (digitalRead(0)){+ E5 z, Z# B& v& ~% q3 E
- ESP.deepSleep(0);
& w" j0 |) Y; K1 m2 D0 p - } else {
4 Z' g- F1 X4 Q+ v/ j1 h - server.begin();+ ] d+ V+ n4 E
- }3 E# L5 U& J7 B6 U& Z! f( A" @
- }
$ U# s( L: @3 u( |% C8 P9 W - void loop() {4 N- q* }! g$ G, ?. q2 H
- server.handleClient();
J2 y0 A6 Q+ x* {+ T$ z - delay(1);& X! R7 m! Z6 S' _$ W2 h1 k
- }
, C4 s& x; R0 _4 {* j' ~ - String doGet(String url){
% F. i/ a* m7 G ?4 w# R" m) H - if ((WiFiMulti.run() == WL_CONNECTED)) {
6 h" W" [8 A8 d9 @6 p/ ~ - HTTPClient http;
0 z" D$ ]9 O# K - Serial.println("[HTTP] begin...");
2 G1 f- E3 g8 Y. m: W8 ]; r( O - if (url.startsWith("https")) {) y! r3 I( X: r* Z$ A: d8 i
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- @+ h" G1 E W. z% _6 Z - } else {
$ F! x- t: f" R" l& \ - http.begin(url);
D& H* t: o$ z' y" V% V/ B - }! N I+ r# [8 e) n; d
- Serial.println("[HTTP] GET...");
3 `0 q8 _% N" k X2 d& I - int httpCode = http.GET();
! h# ]) J) m. C - if (httpCode > 0) {+ C5 _ T, f) p$ Q6 Z- U
- Serial.printf("[HTTP] code: %d\n", httpCode);
! X. ]( a6 a8 b: V# ~0 U6 R - if (httpCode == HTTP_CODE_OK) {
8 A0 C2 ]6 M! n2 F5 a! K5 P - String payload = http.getString();
8 K7 q& k* m. Q) C* p, N6 `1 I+ G - Serial.println(payload);
3 n5 E8 M) u% x4 s1 j3 T6 v9 Q$ U - Serial.print("\r\n");9 ~. A( O5 d7 ^- O
- return payload;
0 R- N! E1 ~) F8 L - }
8 h k% B6 b j0 {4 S - } else {& O1 v* r+ ^6 O
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! p* W8 \5 j* H8 \" V' \ j( _ - http.errorToString(httpCode).c_str());
$ I& D" j2 e1 @- c% _ - }8 O) B# K7 C+ C K6 J- B$ P
- http.end();
: L3 U1 F: Q0 S: ~5 g - return "";% o/ P7 J. @; t+ r6 z5 m0 Z* b
- }
) E) q2 `; e5 ~1 F) s5 z- ` - }1 Z0 B( X7 l3 Q- }/ n
- void mainAction() {* y' r9 e) C( c
- // 发送请求# _4 S) a) `3 G0 K
- doGet("http://google.cn");/ k" f/ j1 @# t: `
- }
1 A- L# z# k5 `. ^9 B+ C
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