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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); i6 W! L' U; B; E
- #include <ESP8266HTTPClient.h>' B- T! i; X9 q6 l( Y
- #include <ESP8266WiFi.h>4 {9 z" a% g( Y( W2 K* w7 P
- #include <ESP8266WiFiMulti.h>3 ^% Z$ G n [& j3 {
- #include <ESP8266WebServer.h>$ P% n' V6 t( e2 o, K9 H: W
- #include <arduino.h>
' V6 C! ]9 a4 f& \* V1 L* J - ESP8266WiFiMulti WiFiMulti;9 P* [, }; v6 R
- ESP8266WebServer server(80);
' s% s q# c% G! s% p9 A - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
K, k3 L' A3 d! X( Y - ADC_MODE(ADC_VCC);: x, L2 K0 O$ Q+ V0 _5 I
- void setup() {
" u' {3 c0 g1 i! | - Serial.begin(115200);5 ?5 m3 B4 E& l! m
- Serial.print("\r\n\n");6 p5 g6 V0 {+ a) i! k
- pinMode(2,OUTPUT);
% X0 R: I( J1 ?3 }- I4 T - // WIFI
- K( r x/ ~$ D2 X d( Q) H# U3 |8 |* q, S - WiFi.mode(WIFI_STA);
$ ~6 V7 x& m" Z5 t% M6 h - WiFi.hostname("Sparkle");
3 m- ~0 J" j; }. h6 ~" i - WiFiMulti.addAP("wifi ssid", "wifi password");
- o+ _4 o# }( V% N i - int tryNum = 15;2 T' T, n$ \2 ?5 T' t' @
- Serial.print("Connect WiFi");
; I9 V3 n c1 Y5 ?) P - while (WiFiMulti.run() != WL_CONNECTED) {+ X; y" [* D' _
- digitalWrite(2,0);7 }+ w- B5 ~/ x; ~5 `
- delay(200);, z' {! ?9 u3 D u: I# V
- digitalWrite(2,1);
1 h8 \+ W* V: A& Z; C* n - delay(300);
, b: Y8 L, B3 D5 M& {2 j) Y - Serial.print(".");$ s: r/ U4 q* E' W" f u4 ]
- tryNum--;
" j0 r9 S! n5 L+ X# X7 @0 w9 |2 Q - if (tryNum == 0) {
# y. G9 u# _$ Z% z: z - // 1min
( ^( {7 K) F0 b& V5 j; D - // ESP.deepSleep(60e6);
$ m7 B7 F. I* l! j' d, ] - ESP.deepSleep(0);2 ]4 ^. @+ j6 w
- }
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- Serial.print("\r\n");! t( z8 `2 c8 z) w/ R# ]/ U
- digitalWrite(2,1);: o& W! l6 B# |3 T3 Z L# ~6 c, I/ g+ S
- Serial.print("IP address : ");& X/ ^' `$ D. z8 v5 f3 A% E
- Serial.println(WiFi.localIP());; n' {3 _& e ?9 w. ~
- server.on("/", HTTP_GET, [](){+ k, @; q9 S; F: o! X
- server.sendHeader("Connection", "close");
* l; u% m0 a3 D2 r - server.send(200, "text/html", serverIndex);
/ X7 o4 J8 e5 o, e+ ?# G4 ` - });7 o! `7 [. m) T) c8 [1 ~' ] E' e
- server.on("/update", HTTP_POST, [](){5 n# ]9 d5 E, o Y
- server.sendHeader("Connection", "close");
( N1 } [$ T# Z) V5 ? - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 r. P. X! r: {# N2 B' N
- ESP.restart();
5 V* L% z @$ O& F- c# [ - },[](){
+ y; K7 @8 a' I- r" k' }! `- U3 N - HTTPUpload& upload = server.upload();
3 D. J7 N: Q% D+ y& S9 ]7 P - if(upload.status == UPLOAD_FILE_START){
- Z, ?0 s8 `: ] e- E6 }4 ]( a - Serial.setDebugOutput(true);
. s2 G* e, ], [( o - Serial.printf("Update: %s\n", upload.filename.c_str());
( p$ J5 l" ~. W/ f7 i" _2 ^8 J - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 F: q5 C* U! X* u
- if(!Update.begin(maxSketchSpace)){1 j( f. q6 @% `6 b
- Update.printError(Serial);
2 ]& u2 Z2 E% A1 \" ` - }
5 f1 I+ G: q! e' Q% b - } else if(upload.status == UPLOAD_FILE_WRITE){
. u. U( P' m2 @! Y! g7 e# u - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* U, q7 Y+ }8 [% @
- Update.printError(Serial);
. z! [3 s3 a" J0 |" `' b - }3 C5 o3 S, `$ A3 j2 e2 V- K# Q
- } else if(upload.status == UPLOAD_FILE_END){
/ ] s% i" p$ X( u# y& H* S - if(Update.end(true)){* ?4 R+ Y. S9 |1 G, A G% a
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* C. t" t: y% h- f* a8 A
- } else {
( a4 M7 J! o' [& e - Update.printError(Serial);/ R3 ?$ L( B$ W- X( ?8 u
- }2 ^" o1 V3 x9 s. h
- Serial.setDebugOutput(false);0 E8 e8 [3 v& |# T0 K3 _
- }
3 C. A3 [$ _5 r4 o# A% R - yield();
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-
' A& ~4 I% |3 V* l% s - digitalWrite(2,0);% o3 {' C2 r6 A" w/ h2 Q
- mainAction();, e- w8 _* E7 R* \
- if (digitalRead(0)){8 _3 r2 B! u; a) W: N N9 F3 W
- ESP.deepSleep(0);
0 h" {7 U: Y5 q7 k) I/ J4 a - } else {
3 a- g0 j2 N8 B( ]* t# b7 I - server.begin();
: a1 _: O9 y6 F" _6 \# ` - }. f, P8 B& C/ M$ w) L
- }
' H0 b- a/ c* z7 T - void loop() {
1 ]& u, [' W' S' L - server.handleClient();
. m1 R' J7 @' n: v; n8 G7 ~* z - delay(1);4 t9 `, s/ k( \
- }
/ A9 ]5 P+ N1 n: Y - String doGet(String url){
$ T7 V! F' D: `' t) c - if ((WiFiMulti.run() == WL_CONNECTED)) {( {& ]; d( S3 d6 M0 k5 s( F* [
- HTTPClient http;
- J4 ` C' L2 a - Serial.println("[HTTP] begin...");
. n9 x. `, L% h4 q: B* x2 v: G - if (url.startsWith("https")) {
) X! ^; T+ g* j5 T - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, X/ T- J9 ]! f
- } else {
( Y; A2 g- J5 u1 T1 w9 E. J - http.begin(url);2 A/ _. X8 L7 l2 |
- }0 }# W# N8 W7 ~- V/ a
- Serial.println("[HTTP] GET...");0 X8 Q7 S( U/ Q/ A
- int httpCode = http.GET();
( T; X5 a$ g$ d# g) H - if (httpCode > 0) {
7 i& j( x$ P2 x/ O - Serial.printf("[HTTP] code: %d\n", httpCode);
; Q6 m, n2 |# h- s* g - if (httpCode == HTTP_CODE_OK) {, C5 T9 \1 ]6 \6 H# p
- String payload = http.getString();/ b' o2 V( e3 q' j. t y
- Serial.println(payload);, t) x+ n' W* |: N' g
- Serial.print("\r\n");7 {; T& F9 ?9 w! ?3 L; m
- return payload;+ t f6 Z; n) U- ~" f3 c4 H
- }! r# U$ |5 I# Y+ B# \+ k9 ^- m0 {; ^' w
- } else { X5 G, J) [ {! b2 T
- Serial.printf("[HTTP] GET... failed, error: %s\n"," ?* m( m! X+ ?( T3 U) V* ?% _* H
- http.errorToString(httpCode).c_str());
; R, R8 _' Z- r" ]8 ] - }
' |( u, B. c7 c - http.end();
' @( d1 H) Z" A! R# m - return "";
( r2 Q* N# q- X! c# g - }
9 ]9 ^( H. h9 ]9 W9 x& ]' ~# e/ S - }$ }, V" i8 E I
- void mainAction() {
. V# t; X3 Z$ a; ] - // 发送请求1 b+ K( l" ^5 Y7 {
- doGet("http://google.cn");
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