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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)
% C7 b, {" y3 v- #include <ESP8266HTTPClient.h>/ \ n, K2 N- o9 Z. W L
- #include <ESP8266WiFi.h>" |: y- R* z% h3 S- i
- #include <ESP8266WiFiMulti.h>
; S" F( _& z/ {* k+ j i; N - #include <ESP8266WebServer.h>& I- L) l# _8 r7 Z
- #include <arduino.h>
% E# h- T7 e0 M, k) M - ESP8266WiFiMulti WiFiMulti;* n S6 z( B/ U, H- r* o
- ESP8266WebServer server(80);/ M. j, m1 o8 _, T
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, Y3 O1 M5 V- s* I" G0 S$ {1 o3 ]
- ADC_MODE(ADC_VCC);& y" l& r7 |) W6 K) l; O+ H
- void setup() {' N% r& Z, ]3 Z* g1 W
- Serial.begin(115200);
0 |2 F" K0 g3 p* W: W - Serial.print("\r\n\n");; d1 i+ r [# l- H5 U/ B. Y
- pinMode(2,OUTPUT);8 b& I% P* A/ u
- // WIFI$ U4 u$ H9 o0 c
- WiFi.mode(WIFI_STA);
7 r% W% t$ }! Z" Z& ` - WiFi.hostname("Sparkle");
* N2 H; j0 }8 _" K) E - WiFiMulti.addAP("wifi ssid", "wifi password");
: }7 {9 h! J6 l3 }& i - int tryNum = 15;6 Q; Q P" X G* H7 t0 |9 {2 C
- Serial.print("Connect WiFi");% H7 n, p$ ^) p6 a r* @2 L9 D ]8 B
- while (WiFiMulti.run() != WL_CONNECTED) {" M. T( O8 g5 X2 }4 m$ f. V
- digitalWrite(2,0);( h: l# u5 g0 f2 V0 }7 l+ Q
- delay(200);
6 h' n2 b( v' K9 U1 f - digitalWrite(2,1);$ b. K! m& |: C3 B+ i* z( n
- delay(300);
9 Q! @; b9 u Y5 L - Serial.print(".");; D; z6 Y, O0 I
- tryNum--;
( @ i% _9 `' E' ~, t5 D$ \ - if (tryNum == 0) {
% d4 ]9 u1 V; p/ O) m - // 1min# D1 F5 |7 O. r% h
- // ESP.deepSleep(60e6);
7 }' ^9 C6 l0 S. S( A( }7 ?7 | - ESP.deepSleep(0);
+ ?/ _* f9 @* R$ r V - }
" v) X2 p3 z- k) Z3 w! S3 e - }2 U1 i' Q. V( r9 ^: n
- Serial.print("\r\n");
& ]) P5 V* v* F* L$ { - digitalWrite(2,1);
/ N# c; `* Z# x6 i0 k. G - Serial.print("IP address : ");6 w# S, J5 b. c$ P/ x
- Serial.println(WiFi.localIP());8 x; ^/ U# A- c; v. }$ \" L
- server.on("/", HTTP_GET, [](){
) V4 B: A7 |5 O$ J - server.sendHeader("Connection", "close");
0 g8 y# o2 | I3 e - server.send(200, "text/html", serverIndex);4 V* u5 w- D0 T9 `0 ]. R# O7 j
- });9 k3 w1 `7 f# }. |5 a) j: L) T+ E
- server.on("/update", HTTP_POST, [](){
+ n; l- W3 \' { - server.sendHeader("Connection", "close");- \/ A0 K, Q ~# \7 D% R
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
0 J8 u5 |8 Y. G6 p - ESP.restart();
$ Q0 Q0 ]* g9 y - },[](){% g' ^, h6 Q! r" i! D% s8 A
- HTTPUpload& upload = server.upload();
4 l$ Y" h) P; e# y) c( n" R3 P+ ^4 U - if(upload.status == UPLOAD_FILE_START){" F0 T% C3 i/ a* X* i
- Serial.setDebugOutput(true);5 u8 R N7 y; i' ]0 v w' m- r
- Serial.printf("Update: %s\n", upload.filename.c_str());5 z' t0 P+ G( n* u4 E
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;4 k% V; g6 i; L1 H
- if(!Update.begin(maxSketchSpace)){
* N5 e" I; a! e& ]9 v - Update.printError(Serial);4 q/ a4 p- N4 t% h6 w
- }
% `0 J# E# }$ ]4 S6 d" n - } else if(upload.status == UPLOAD_FILE_WRITE){. ^ c* g' x5 q- L' o
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, x& q7 w8 a- v) V9 M
- Update.printError(Serial);
8 q( x, U8 P4 i* x' h( u0 V - }
! Z; K% }$ u0 [' w1 u5 f - } else if(upload.status == UPLOAD_FILE_END){5 v3 t; {; X5 a7 j7 A
- if(Update.end(true)){
. @% Z1 I' Y+ {' J2 G% q! e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" m, H7 j+ [) z& `9 G* W8 F - } else {" I2 A. r" ?% _; \9 u
- Update.printError(Serial);
5 n( h7 H2 L J* f2 k% D - }: K: ]6 p2 K1 i- O
- Serial.setDebugOutput(false);% x7 P: u$ v: `7 H6 ?+ D- m4 o
- }) C9 m6 n) I6 ^+ t% `9 \" Q
- yield();
0 ^* }2 f3 e }5 c# m) r! ` - });. w$ g$ [" v) ?* o% M8 D- f
-
" S, U% k) t9 \- b8 F( _# e - digitalWrite(2,0);
% d; L- C# B3 w c9 z4 A7 M: E - mainAction();- P4 S D# G: k. c% P) z
- if (digitalRead(0)){
% N/ E% L. C6 N* X% B5 o: u' l - ESP.deepSleep(0);
3 d' @6 t1 O8 [, w( j) a8 S/ T - } else {
2 i# N( `' r" W' o$ C& n6 g$ s, e - server.begin();4 P4 ]- C/ m8 }6 k5 w
- }
, r+ x. ^2 m! M; B - }
& Z" x/ z* t. Q7 N4 c$ g - void loop() {
7 b# G; k, h6 N6 V5 ~3 U- H - server.handleClient();
* s8 X5 o! @: t7 W5 |, K: T7 |( V& B - delay(1);9 Q* @4 j' ?: Z1 v
- }: J( s- j$ I P5 p, o) v
- String doGet(String url){ `6 R c' @. f$ X" E" i
- if ((WiFiMulti.run() == WL_CONNECTED)) {' C" E/ L. f, e7 }+ _' l% E# B
- HTTPClient http;
B" r" K0 D# m - Serial.println("[HTTP] begin...");
# c7 d ]7 y2 y+ j. U - if (url.startsWith("https")) {+ H8 \0 `# F# Y8 o6 ^
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" n8 n* B3 G3 h9 v - } else {$ J6 G5 Z. G. U- R, y+ c+ O; E, v
- http.begin(url); W! X% Q& a! e! y
- }
7 @ s' m* \: S - Serial.println("[HTTP] GET...");
. E* b) ^$ B$ O4 W9 O - int httpCode = http.GET();
2 e$ T8 g7 S8 G! v }! H- B# l4 d - if (httpCode > 0) {+ {+ {# T& g* o$ G6 B1 I6 ]8 L- J& N
- Serial.printf("[HTTP] code: %d\n", httpCode);- l9 t3 {1 { s. Q* T, z
- if (httpCode == HTTP_CODE_OK) {- Q+ B8 Q0 }) H
- String payload = http.getString();: a& n! x5 h: q1 s
- Serial.println(payload);
( |/ Z7 Q0 ?$ K/ @6 A# }% ~ - Serial.print("\r\n");
9 Y3 j' z/ H0 e: Z& l8 D+ x9 {3 D1 o3 v - return payload;
4 `* ^! q3 s3 |& H' j0 {$ m" H/ ] - }! O- b; |9 u- X( L+ j
- } else {
; ?) ?2 M+ t0 W; v7 i+ {. [ - Serial.printf("[HTTP] GET... failed, error: %s\n",
i1 R' r' |/ n1 ?; H - http.errorToString(httpCode).c_str());
7 v6 e+ i" U: w - }- u* e+ P3 |7 F# |! H' Z# d; X1 H
- http.end();% Z4 ^; o3 S* X
- return "";5 E" X9 r: U2 y+ u4 m1 a
- }
0 u/ ~: a7 t) B" F+ d - }
- Z& B9 F: @" U" r& X/ S& ^3 | - void mainAction() {
: X$ P2 X( v' H' J - // 发送请求
* v+ @" s7 Y u, G, r: j$ f - doGet("http://google.cn");
+ n- C6 r/ A3 F, R# x* @ - }- B- i% B a5 w. d; D
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