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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)
7 K+ a: y2 h( s# o- #include <ESP8266HTTPClient.h>! e. L$ T& B/ G; H0 L: R
- #include <ESP8266WiFi.h>6 A0 j" L) y+ g# E3 X4 W2 K" Z
- #include <ESP8266WiFiMulti.h>
9 G. g& m ^- h2 H) A - #include <ESP8266WebServer.h>1 q6 r9 o7 ~% T) k' n1 ]6 j
- #include <arduino.h>
* }8 {/ c: y9 J* O3 K$ |* g - ESP8266WiFiMulti WiFiMulti;
9 E3 n# u% q; ]4 P9 q1 Z( y - ESP8266WebServer server(80);
( \2 z5 [7 H) d- g/ w2 S& R - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" {! d& E, e" j5 B; d9 k
- ADC_MODE(ADC_VCC);
* v1 p7 X4 g7 V' v8 a/ ~) a - void setup() {
5 F; ], {+ ?& Q3 u$ }3 F - Serial.begin(115200);
1 J1 _* n; i: X8 w N; T2 { - Serial.print("\r\n\n");0 h0 N7 ^. }) p! q3 L/ J
- pinMode(2,OUTPUT);
% ?- T+ I& @ `' }& D - // WIFI
e* O+ ^# t7 l# [ - WiFi.mode(WIFI_STA);0 }* J _& x1 \% F
- WiFi.hostname("Sparkle");
+ h* E) v9 a+ F+ B x. r; } - WiFiMulti.addAP("wifi ssid", "wifi password");
! I8 W/ ]7 s3 V& R. o$ {& g& w3 ]- G - int tryNum = 15;: R7 m" t! a$ w @6 m" i5 H' z( N
- Serial.print("Connect WiFi");
( l# ?. [) p( v, P( S3 Z' R) M - while (WiFiMulti.run() != WL_CONNECTED) {
; q; d% E8 }$ ^) V n - digitalWrite(2,0);
% J, N. I$ u7 F/ k9 _, C - delay(200);; F% R6 b& x/ t* M0 N7 h
- digitalWrite(2,1);
4 V3 N/ o9 X5 c9 p7 X* D - delay(300);
8 S! b x0 Y L) B3 a7 R5 m - Serial.print(".");
. w. J& U; p- w- i2 R - tryNum--;
* E% D, n) V7 v6 d! r3 P. k: @1 L/ E; i4 J - if (tryNum == 0) {3 m. p& R1 q$ q2 X8 d
- // 1min
/ \4 N2 R9 S7 U! F4 F - // ESP.deepSleep(60e6);5 G2 ]# f* |6 ]+ W. y
- ESP.deepSleep(0);
% O$ Q4 s& @- r( p - }
) I' {' \$ w& z9 o$ Q - }
; @* b3 k( N6 |0 K2 x% `3 E( U - Serial.print("\r\n");
% }+ b, B; B5 _ ^. F9 Y5 ? - digitalWrite(2,1);
2 L, n! r* I# ~* c3 Q - Serial.print("IP address : ");
: w6 D+ o# K6 I+ z0 J6 u) | - Serial.println(WiFi.localIP());
, h/ j, o/ w2 h, \* s - server.on("/", HTTP_GET, [](){
; p, r2 u' a, p6 |" K2 M% I/ a+ K - server.sendHeader("Connection", "close");
9 V, A3 E$ c8 k- j+ j2 W - server.send(200, "text/html", serverIndex);
3 k( l3 _ Y) f) Y6 C$ ~ - });
+ j; E G) j' Q2 G, P5 r: Z8 V) W, l - server.on("/update", HTTP_POST, [](){
; ?9 Q+ \! D8 Q( U3 O& y5 R1 v. y. z - server.sendHeader("Connection", "close");+ q& @7 @; t. R8 s/ ~6 q C, d) E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* b) @* _( m$ Q' K# k
- ESP.restart();+ y& {, b' s1 o D S4 _9 k
- },[](){2 p U `6 d" J/ K$ P
- HTTPUpload& upload = server.upload();
3 u" c5 D3 ]2 A) {6 [ - if(upload.status == UPLOAD_FILE_START){
. ~6 o4 a- E3 B. o0 ?6 \ - Serial.setDebugOutput(true);& x" j5 L9 d- \' G( r, F: t
- Serial.printf("Update: %s\n", upload.filename.c_str());
! p/ [7 V- g$ O5 A& S - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% g1 m7 m7 q' X# @8 `+ }: b' p
- if(!Update.begin(maxSketchSpace)){
! F7 K( S0 u5 G( h - Update.printError(Serial);' s. S! y ~1 k% w* @
- }
( `7 {/ `/ D; R/ P1 [9 M - } else if(upload.status == UPLOAD_FILE_WRITE){
* h4 O- m1 w7 n3 P - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
. T% L" V8 W5 b8 r( } g; \ - Update.printError(Serial);
, s9 h2 U1 k4 J: J% }$ q6 _ - }; a/ E" _8 m) c4 q, `& j
- } else if(upload.status == UPLOAD_FILE_END){
( T; ^5 _2 K; r$ Z7 d/ B$ t+ z - if(Update.end(true)){
0 o/ J; I. w" [ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 `6 z* ~0 _. `; B9 y
- } else {
0 V7 @8 k' C+ O - Update.printError(Serial);
* B- f. W* w5 W4 O& J) O - }
3 s6 |' g9 g' a1 D4 G+ C4 h; N - Serial.setDebugOutput(false);
3 d* h O3 ~, M - }
* c8 `3 ~, h+ }7 Y% } - yield();$ t& a6 K9 j2 A
- });
2 B6 |' p# I7 ~* ~, c -
2 V5 v% ^# m1 B - digitalWrite(2,0);
# \9 k: c3 Q# {& e& ?# d' I1 @ - mainAction();
. ]& g# A# y# w8 {1 k( n - if (digitalRead(0)){; F4 R/ ~5 F0 r% n' Q: d3 ]( O+ z' a
- ESP.deepSleep(0);/ E( l' u- P+ O N9 f; E5 |/ l
- } else {& M% H8 g, w1 c. R
- server.begin();! o& x( s+ z }/ C3 P
- }
9 u* }9 P3 g6 q3 q" N0 q! X - }
) d' M8 r8 c( ?$ F - void loop() {3 [5 J5 {4 Z) T3 Z1 C1 H1 O
- server.handleClient();) [% z$ k y# z4 z+ ^
- delay(1);& x& x( p8 y/ G1 f h, V
- }
. |$ U- ~+ D+ c. ]4 Q, D2 d - String doGet(String url){7 x% r8 T1 Z: q6 P+ v
- if ((WiFiMulti.run() == WL_CONNECTED)) {
# D" h& ^1 D4 ] - HTTPClient http;9 N2 ]3 u4 y& j: K" L" e
- Serial.println("[HTTP] begin...");
0 ^' A2 l( c1 W8 {1 h - if (url.startsWith("https")) {8 @1 X* ^$ N& V3 t
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); A. P. o/ S" Y' a
- } else {
# @: @* |8 ^$ g" w - http.begin(url);
& P, i; B3 O" {! ~2 j1 i& F - }
' ^2 d; ^3 F7 W1 [8 B! b( V - Serial.println("[HTTP] GET...");
7 k8 R9 z" X% d% M5 J- a - int httpCode = http.GET();* }4 M7 ^, X9 H* M5 e% R" ]* Q
- if (httpCode > 0) {: D" ~3 ^3 h+ w$ {) y5 w! o5 T8 b
- Serial.printf("[HTTP] code: %d\n", httpCode);
) t; `; V- D8 F# C0 A3 k - if (httpCode == HTTP_CODE_OK) {4 [% I4 q* J, K( }
- String payload = http.getString();
* P E; M$ \4 _ - Serial.println(payload);7 n/ A5 d' J3 L* C
- Serial.print("\r\n");
# f- Y% N: ~$ s: |/ K5 Z - return payload;/ \; \+ f4 g+ ?/ d' i, b, _& I
- }, ? G" E2 X0 `0 x6 x$ O2 b
- } else {
% r) [+ @4 Z( p, W4 Z - Serial.printf("[HTTP] GET... failed, error: %s\n",! r* g) r F& C+ X3 K' X' {
- http.errorToString(httpCode).c_str());5 U% I0 {! H8 A3 x! b0 q! ?. ~; p$ o
- }
- X$ z) `4 W- Z1 @+ ]+ W0 W! t/ B - http.end();8 i/ g; E3 R7 R9 \2 y9 D
- return "";
- x- G/ m- X. d/ E - }
) q& P# G) \" A5 I - }3 i, ?" ]1 n" ^% ]7 B6 i
- void mainAction() {4 K; L5 A" U; u* t! q# V! V
- // 发送请求6 G" Q+ j& l. e# t9 C9 p7 ?+ J
- doGet("http://google.cn");
, `% z4 O, P$ W: z" |) Z# \3 Z - }5 ~. |2 g: |( A
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