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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)" l3 a. u) R/ e1 P q- G9 W
- #include <ESP8266HTTPClient.h>9 z- m2 ?; Q2 l m0 {
- #include <ESP8266WiFi.h>
. t! R7 ?8 M* f9 F8 O, e - #include <ESP8266WiFiMulti.h>
1 i9 l9 l; X# d8 z) \ - #include <ESP8266WebServer.h> V9 F6 y- X9 y
- #include <arduino.h>
* w/ h3 z2 O6 T/ o5 ` - ESP8266WiFiMulti WiFiMulti;
4 B1 ]; y1 z, V; x% f - ESP8266WebServer server(80);
8 R. ^5 v, R6 Q/ L" W+ R; g - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 T. l* c* c: x0 g/ u7 ~0 Q. | - ADC_MODE(ADC_VCC);
2 Y1 O$ I+ X& o" |: k - void setup() {" m3 |6 |# }6 O' H
- Serial.begin(115200);2 F- ^& p. s, g3 `# d0 d
- Serial.print("\r\n\n");
" Q3 h& V F6 x' H6 y - pinMode(2,OUTPUT);+ b& ^& I9 a1 L* |. B
- // WIFI$ @1 f) y |* f& q- w
- WiFi.mode(WIFI_STA);' R& ~: C2 l# l9 G
- WiFi.hostname("Sparkle");
4 C+ t0 U* O9 e - WiFiMulti.addAP("wifi ssid", "wifi password");* J1 a5 k7 p, R) E! `4 c
- int tryNum = 15;
j% X3 f* ~; d$ X: c - Serial.print("Connect WiFi");* |4 V( z6 I4 C
- while (WiFiMulti.run() != WL_CONNECTED) {
8 d" O; j4 G6 ^. I - digitalWrite(2,0);
" @" t2 z0 S/ B* i7 h3 s - delay(200);
; q" b, Z+ [1 c5 B2 P6 c - digitalWrite(2,1);& P& O; A! C$ S
- delay(300);2 d: w- a D2 ^. W
- Serial.print(".");( s% D& q" w+ n& _' o6 s! @
- tryNum--;
" u' i' B. T8 ^ - if (tryNum == 0) {
; N/ |/ M7 O* a3 J* L# w& } - // 1min, k3 ~! x1 o( B& C
- // ESP.deepSleep(60e6);
. a! e6 ]2 c4 L. B* v, I+ t - ESP.deepSleep(0);5 [: l! h- [) x, q! h8 b# g; e
- }4 O/ U0 {& w* P) o
- }: l! h0 r' p5 R
- Serial.print("\r\n");: w; f1 n7 q H' J6 u" i
- digitalWrite(2,1);; g# f! B; [8 Q9 ?" x: @+ `
- Serial.print("IP address : ");! ] }7 \& Q9 F- X( u
- Serial.println(WiFi.localIP());
) \; ~ y3 L0 u. W - server.on("/", HTTP_GET, [](){; Y: P# y2 Z1 j$ A& g
- server.sendHeader("Connection", "close");: l4 A! H: @8 r/ @, N) ^4 _
- server.send(200, "text/html", serverIndex);
3 P* a. N0 q }6 v8 k - });# R" N+ d' w. d4 L
- server.on("/update", HTTP_POST, [](){( r8 u8 J6 E" Y: z8 I/ u2 F% ^( z
- server.sendHeader("Connection", "close");/ I6 M _0 l6 z, g
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
, K4 t }: J& k" F4 \+ i6 E - ESP.restart();. S/ V% |, z7 X+ U
- },[](){
! a: u8 E9 e0 ]/ `- [: u+ k - HTTPUpload& upload = server.upload();# S) W5 p4 D, t! p n5 e+ Q6 o
- if(upload.status == UPLOAD_FILE_START){
7 _* Y f1 a6 `, X9 t" }+ d) `+ G - Serial.setDebugOutput(true);. M3 A* i0 l2 t5 L: i3 d
- Serial.printf("Update: %s\n", upload.filename.c_str());2 C' x3 `# |1 I
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 ^- H. g# G. |; T! G& R. h+ v4 ]# t
- if(!Update.begin(maxSketchSpace)){
" x. ?4 N$ m) | - Update.printError(Serial);
, [% l6 [6 G+ ?1 K: y2 o5 M - }
5 V/ {8 m: Z- ~& r! T5 z( S - } else if(upload.status == UPLOAD_FILE_WRITE){
* O+ H/ d# P& U# O1 d$ q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( g2 h' e, k) L% ]( V - Update.printError(Serial);
% g- _2 F% N( i - }; g5 o( f% a# h) E$ J
- } else if(upload.status == UPLOAD_FILE_END){. M! h# S7 ^# i9 y- ~$ n. d9 c
- if(Update.end(true)){+ ]' w1 {' u# T6 ^) ]! u6 E: D
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! k2 r! `( n( f# b
- } else { ]& m! x) b( o0 i! l
- Update.printError(Serial);' w" q' K; g4 H- `6 U* L/ o2 _7 X' s
- }. K- j+ g8 b6 C0 |# c4 ~7 g
- Serial.setDebugOutput(false);7 G3 v8 a* N; ~! d/ i; q1 i
- }6 ^( q5 Y8 N" O6 Z
- yield();* F, {4 V0 a5 L6 b
- });
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- digitalWrite(2,0);! D' Z( C& V5 O% K6 R
- mainAction();
. D0 k. L3 R, j H/ c - if (digitalRead(0)){1 v, Q! z! m" M0 |& b( \
- ESP.deepSleep(0);
4 `2 y) E7 ^2 T - } else {
7 [! P% ~/ b& e* _ - server.begin();( ]. R& B e8 a9 T8 L
- }% Z# o6 j5 z7 J- k% l; h
- }/ c% l1 S; i& w4 h/ _- I+ R8 M
- void loop() {
' T- q' Z9 ~9 I1 c% ?+ I - server.handleClient();
0 {* z0 e+ ^1 a: j- J - delay(1);
9 b- v! p& G; t4 V. M4 ~ - }8 O; e& E2 i: F6 ^0 f# w: {2 p
- String doGet(String url){
1 V% m( M1 b/ T4 o$ |: R - if ((WiFiMulti.run() == WL_CONNECTED)) {1 m! H+ c) q# }! ?! p% I2 r( j
- HTTPClient http;
( W6 ?. J0 b0 Y( E* q - Serial.println("[HTTP] begin...");& L9 \% _" h- D, ?: s1 K/ E& m
- if (url.startsWith("https")) {0 w0 n8 a5 A) ?2 X2 h
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: g6 h( v* ~4 w# I$ e( S) f
- } else {* u4 a# F8 p0 s2 |/ W. T
- http.begin(url);2 r$ X) |- w" j% G9 N+ n {
- }
+ ?( G7 W5 K: v0 Z$ v. l - Serial.println("[HTTP] GET...");
. b4 W M( X+ ~7 X" ~$ Q/ Z* W - int httpCode = http.GET();
7 Z! v6 t0 v. y' [ - if (httpCode > 0) {
3 y- _, b5 J" ~& G" d Q - Serial.printf("[HTTP] code: %d\n", httpCode);
* l# g) Z5 o& ^) O2 L - if (httpCode == HTTP_CODE_OK) {; C& g8 p2 _9 _% D
- String payload = http.getString();! k; L+ W6 ~0 `7 I8 E+ E) b
- Serial.println(payload);
# X: `3 A( q; K$ }* n- ? - Serial.print("\r\n");
$ X3 p) V* a! N* b - return payload;: K; T" q, ` c6 A( X9 W9 F2 M
- }$ `# {3 v9 L2 h' ~# J2 O7 d; R5 O7 O: a
- } else {
7 G# d7 c& N) ~% } - Serial.printf("[HTTP] GET... failed, error: %s\n",
. h; M" n3 d, X# L( a - http.errorToString(httpCode).c_str());
$ X* o$ l) x. V3 R: R - }
, g: n8 Y' i9 Q$ Q+ ?1 t( C - http.end();3 \. h( e6 H& s! u. n! [; B" d
- return "";3 O! u5 _4 T9 J
- }
( ]/ \9 ^" X7 D# R1 i - }
7 W `7 d- y# S/ Q: [" A' c - void mainAction() {
2 q! r. V! Q4 d) B& D1 I+ o - // 发送请求
1 m! M* C; ~5 q4 I a; N7 h - doGet("http://google.cn");
1 v- k. A/ [4 F; X k - }+ w& c$ d: F8 l) \
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