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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). h( [5 S' a# i$ J( m8 R9 E
- #include <ESP8266HTTPClient.h># q3 f3 E5 ~+ \5 u: V
- #include <ESP8266WiFi.h>
- F: D0 }1 F1 \# ?& k: j! M. ~ - #include <ESP8266WiFiMulti.h>
) O$ S( }/ t% A& `# s - #include <ESP8266WebServer.h>) V$ r: C) c* {7 r, i+ o
- #include <arduino.h>
& Z, W3 e- `6 x2 ]$ o5 p- r G& O; p - ESP8266WiFiMulti WiFiMulti;, l2 C, A. I% j! k/ ^) v
- ESP8266WebServer server(80);1 e$ [* Q( T+ j4 q1 L
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
6 D; U- h% ]3 }7 _ - ADC_MODE(ADC_VCC);) n. _9 ~ |7 Z0 v; y
- void setup() {
& {+ P4 E% @2 P3 A: R - Serial.begin(115200);
' V1 `0 |/ [. E: d% \) } - Serial.print("\r\n\n");5 b6 c ~* P. a% }
- pinMode(2,OUTPUT);5 N8 ~5 U' D2 u
- // WIFI" T Q3 U5 M5 Y( ?9 h
- WiFi.mode(WIFI_STA);" o3 x# }! P# Z) c) D4 R a
- WiFi.hostname("Sparkle");$ P& P2 c; I* s% m
- WiFiMulti.addAP("wifi ssid", "wifi password");% R; k! f* n4 c6 v; N
- int tryNum = 15;
7 y- u- {, i" S - Serial.print("Connect WiFi");
r* A/ J. H) s9 A - while (WiFiMulti.run() != WL_CONNECTED) {' f8 L! H/ f3 k4 N M+ r+ A7 |
- digitalWrite(2,0);
9 h; G+ |. \' Q - delay(200);" c: }. X4 [& L' c9 q$ R
- digitalWrite(2,1);
: k6 x: y1 I! `7 t2 U' | - delay(300);: M0 ~0 G; o6 p- h9 a
- Serial.print(".");7 j) s) n8 J4 t( D6 t5 S* N
- tryNum--;4 \1 o; P. r* U
- if (tryNum == 0) {5 @2 N2 W9 K0 m6 J b E
- // 1min; F d1 V ?( R! H# r6 c
- // ESP.deepSleep(60e6);
{% B+ s0 ^2 s - ESP.deepSleep(0);
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- }
. P O$ Z7 J ~) C! ]6 `( j7 u9 s - Serial.print("\r\n");( } G* _# i* }' ~: u. N' p8 W- l
- digitalWrite(2,1);
" C# {3 E3 k* p3 E - Serial.print("IP address : ");' d, t5 H$ h! V' e
- Serial.println(WiFi.localIP());
" \' y) m% r4 s* z, y1 x& |' n% Q* d - server.on("/", HTTP_GET, [](){+ P2 ]# o" K/ t- p* i: I5 O/ Q' T% {, J
- server.sendHeader("Connection", "close");
: x0 Z& j2 j2 K' m# \2 m4 L - server.send(200, "text/html", serverIndex);2 Q$ t7 w- Y5 }8 S) q
- });4 U. t5 s5 `1 k8 w$ j
- server.on("/update", HTTP_POST, [](){
+ O2 G: A0 M3 G - server.sendHeader("Connection", "close");+ R+ J( j& D# m' [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
( x: Y* m* y+ p3 @ - ESP.restart();
* t/ A' }4 A& l8 a. f! o1 a - },[](){
9 D: B8 Y |1 J) ?7 n: S - HTTPUpload& upload = server.upload();
, O$ q3 k( q0 L; N" E( c$ e1 ?4 O - if(upload.status == UPLOAD_FILE_START){
' G5 w; X. Q6 J1 _: |. f- Q - Serial.setDebugOutput(true);7 J" X& b* p8 u4 s: ?1 M7 F
- Serial.printf("Update: %s\n", upload.filename.c_str());
' B* Y9 P6 n, u1 T8 m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* u9 f J1 V1 u" G% X
- if(!Update.begin(maxSketchSpace)){
+ ?( A; k2 k0 i - Update.printError(Serial);
' o5 u- v# E( u$ n) l$ H$ Q7 {% t - } S" {; c4 Z) F/ U2 S8 }
- } else if(upload.status == UPLOAD_FILE_WRITE){& j5 @, Z( Y: O
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, R- t! P0 n& e
- Update.printError(Serial);1 R0 \. d. W9 p* J. E+ X* Y2 A& |9 s
- }
; l/ E0 _7 v, I0 n; T7 J) d2 f - } else if(upload.status == UPLOAD_FILE_END){
9 @" P0 a/ [) p% A, e - if(Update.end(true)){
+ m, O$ r: ^* s) f - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# {8 g2 b- l3 A, T0 d$ q X: `
- } else {$ L1 t; y! a1 X: G! G$ O& U! J8 ?
- Update.printError(Serial);- P$ s- }- y x
- }
* H- B6 m& I% ^4 m$ d B - Serial.setDebugOutput(false);
5 a2 L, M( h l% y) }0 H2 } - }
5 W9 U0 i& O( {( @0 n - yield(); ~$ L# L, U1 f" u/ k
- });
' _- \9 ` I H: c; V! T' Q) i - 7 z- s5 |9 |1 Z$ _: }
- digitalWrite(2,0);% k% @' q; z# \9 E
- mainAction();/ c8 y. I$ G" o/ V
- if (digitalRead(0)){
% E0 B" }. R" Q4 Y - ESP.deepSleep(0);& j- n" P& Q2 {# B3 d
- } else {
. n3 J# e7 f& `. I5 g4 ]) ]0 t - server.begin();, `8 s. C0 {% a8 C, l2 \. A
- }9 k& i# v! F. I( _
- }
2 d& }6 G$ N' J! } O" \) | - void loop() {
: J0 ~7 q8 M/ I; f - server.handleClient();
L* i. P( z6 z2 y/ N6 O) Q* `3 H - delay(1);0 j" s9 A9 V3 ]3 @
- }. M6 Q4 _' \: o4 b
- String doGet(String url){
: _7 X8 [) D4 ? t9 `. r - if ((WiFiMulti.run() == WL_CONNECTED)) {' E U+ H: J7 T3 k1 X9 k2 O& E
- HTTPClient http;
; a; q- M3 `( \6 R - Serial.println("[HTTP] begin...");2 I4 R3 O1 l0 b& e
- if (url.startsWith("https")) {
' ^% H4 B4 x6 C0 J6 D - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
- W5 O/ u; C9 n - } else {1 j* b1 c( J+ M% t8 d7 d$ O( E
- http.begin(url);4 x0 L2 G" c' K; O. O) U. J
- }8 O. W9 I$ G: t" f0 @7 }
- Serial.println("[HTTP] GET...");( U3 q* Z. \: O9 B% i
- int httpCode = http.GET();4 H- O. _6 q8 t) q% e. G) f C" M
- if (httpCode > 0) {6 n2 o# g I, Y- f! c
- Serial.printf("[HTTP] code: %d\n", httpCode);- y% L3 K; D7 b; }9 W
- if (httpCode == HTTP_CODE_OK) {
8 p0 X& ?. [" z: o P, l - String payload = http.getString();5 P7 Y" j7 f6 @: t, V f" T X9 p
- Serial.println(payload);
" X9 a1 b# Y: F0 E - Serial.print("\r\n");
, z2 L, C' G5 e+ Z - return payload; D) v; t7 t' q8 O' {
- }
, c3 S+ ?. R4 r, a Z - } else {
+ _- w0 F4 p" `, S C. \7 M/ A* X$ ^ - Serial.printf("[HTTP] GET... failed, error: %s\n",
8 e7 \# S& Z$ ~: D8 N- n - http.errorToString(httpCode).c_str());1 {! A6 j X5 m" d& Q7 U
- }
; ~3 y7 B7 l( i- ]4 b - http.end();
U" s) A+ h& L+ c - return "";
6 \1 T" A |' p, O9 y - }
/ H- J7 v# e4 N" d - }& r2 h+ y% K* K0 E# v' _8 Z
- void mainAction() {
( }& M1 n6 J# S* ]& ^ - // 发送请求
, J$ G5 m4 @( ]5 h+ Q - doGet("http://google.cn");
7 L6 ]+ q+ w2 p1 X8 h s7 ?, S, }; i# L( o - }
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