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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)" t* w- i' _! A
- #include <ESP8266HTTPClient.h>
$ x2 y; g5 U+ e O# ~8 { P - #include <ESP8266WiFi.h>, k1 o4 C Z$ N# c
- #include <ESP8266WiFiMulti.h>1 d/ @. F# q2 r n! U3 r
- #include <ESP8266WebServer.h>" k: o r v1 ?9 O
- #include <arduino.h>
" b0 U# X+ ?4 d# P4 g - ESP8266WiFiMulti WiFiMulti;5 @! V" j: k3 e6 g
- ESP8266WebServer server(80);
; Y2 g+ {& y8 a$ J) k0 y - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
+ Z. W* y h! {* W9 f+ F* h - ADC_MODE(ADC_VCC);
2 T6 [& {' ~8 w! r2 M( [ - void setup() {7 q. B1 k. p, o2 U, G1 v. C, j3 ?
- Serial.begin(115200);" X; F) q+ {. i5 G+ o3 H
- Serial.print("\r\n\n");
, H5 ?& ^6 e: V9 l9 A# G3 D - pinMode(2,OUTPUT);
9 _. F: c5 I6 b6 ^. W - // WIFI% G P6 e! h( U7 p9 A5 Y
- WiFi.mode(WIFI_STA);
) ]4 m. F9 D$ O9 I - WiFi.hostname("Sparkle");
O( c; X+ ]2 X( ]: U9 V - WiFiMulti.addAP("wifi ssid", "wifi password");" C* B0 h8 i; q* Y0 v! a# x5 e
- int tryNum = 15;
/ e* v2 W5 F, Q, ~4 J; I: c - Serial.print("Connect WiFi");" r* U8 g: Z/ ?1 a! F
- while (WiFiMulti.run() != WL_CONNECTED) {* F8 A; _5 D9 {' x! m
- digitalWrite(2,0);
5 K( B' l3 T! X9 c) \ z - delay(200);' _0 z- m( E9 I3 n6 ?: K4 o) ^
- digitalWrite(2,1);
2 J4 H( ~5 u! @0 P4 i - delay(300);
1 q2 i( A. a2 o, G3 G - Serial.print(".");
, h! W5 {* L9 y3 P! \ - tryNum--;
7 ~2 R; I1 o) o+ \' `7 g - if (tryNum == 0) {
& V* @" }, e2 \& ~4 s# _! d - // 1min# y5 ?) e+ u- B% X/ x# ~
- // ESP.deepSleep(60e6);
6 x- n, ?+ [% ` - ESP.deepSleep(0);! `' R8 F9 O, ?$ p& S) L: D/ T5 w
- }
% ?+ J l2 i8 W. B# v% i& @4 s/ D& P% Y - }
: o) E E4 s& s5 y" r1 M; @$ L - Serial.print("\r\n");( g8 l9 a4 ] E1 E4 D0 {
- digitalWrite(2,1);4 C8 J& R- |! L1 z
- Serial.print("IP address : ");% M, u" r+ T8 a. x. J6 J6 p
- Serial.println(WiFi.localIP());5 I& N: U/ @( x. k0 Y8 [- \
- server.on("/", HTTP_GET, [](){3 c# c) W( m9 H/ E. ^" b
- server.sendHeader("Connection", "close");. n- Q2 z& Q/ ^2 y) f
- server.send(200, "text/html", serverIndex);
" M8 R1 i& D' [, Q1 j/ r: R7 i - });% h3 C+ {& k, a0 B6 R. [& `
- server.on("/update", HTTP_POST, [](){
, @1 m: m6 A w1 {- u x - server.sendHeader("Connection", "close");
+ j! q! g8 d' g5 n9 E4 M+ F5 A - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");* i; q) L3 T! m8 Q: \
- ESP.restart();
" Z4 Y8 W) P- B5 a - },[](){6 [: w, T+ ^- `: k: k' D, s
- HTTPUpload& upload = server.upload();
$ i1 y) j2 h2 I& T/ C - if(upload.status == UPLOAD_FILE_START){
8 u( e! M& u) H1 Q! T' t - Serial.setDebugOutput(true);
5 a* ?0 z8 l- j8 e: E a4 B& |% s - Serial.printf("Update: %s\n", upload.filename.c_str());
6 s1 u- K9 |! U. d2 { u! I - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* g7 T9 P. X) z1 Z
- if(!Update.begin(maxSketchSpace)){: R8 N! f# B9 x( g, f
- Update.printError(Serial);+ k1 @) r* {4 W3 O2 i6 L8 n" X
- }
0 h/ {/ X) z; k" x* `4 R - } else if(upload.status == UPLOAD_FILE_WRITE){
& Y" }+ I9 K C( O* r9 b* t) F - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){ Q6 u4 \% t3 v% O7 U& e$ \9 C
- Update.printError(Serial);
, F& r# ]* A' `: r4 K) V4 V- ` - }
; D& |! _) }6 J R. m/ s- ? - } else if(upload.status == UPLOAD_FILE_END){/ b- s7 m J1 Q- k' t6 t2 a+ \' |
- if(Update.end(true)){5 J8 k: N2 W, n) |; z0 [
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 |; q+ ^6 ?6 ~# }$ T0 `! O
- } else {
% T" l% j6 K' v, L5 w - Update.printError(Serial);. D4 ?' F" H6 ?
- }: s* X C: G# _6 O
- Serial.setDebugOutput(false);9 N3 |$ ~+ \5 n& n% a
- }
+ O [& h- K/ A' B m$ m" w) Q/ E - yield(); ^/ t- X1 J7 L# E# T
- });
5 M9 w4 K0 i& u) M* L/ L5 u+ M; b3 ~ - Z8 E! v( J8 z7 c, c1 g7 F
- digitalWrite(2,0);
" x0 L8 @) n8 @+ V$ ~* ?' h - mainAction();
6 |: ?' E j% ]2 K - if (digitalRead(0)){
% l5 ~2 p3 B& g: X! V$ B; U/ z5 S - ESP.deepSleep(0);
% H2 x1 Q w/ ?( ]$ a, Y - } else {9 B$ x& X* z- p0 y7 D* ^0 w; ~( \
- server.begin();+ F* \' p3 q* v2 a- o W( K
- }
j6 F* \, {' z9 P# t% }: D6 z - }
7 W2 v+ J, K `- p5 ?5 @8 d1 x& W3 ~ - void loop() {
' P( q; d1 h/ S" v% u2 a& t# O - server.handleClient();
$ J& ]1 m; H$ }6 q) H - delay(1);! K) p$ C' Z4 B& N: X
- }- R: }, C0 r7 E
- String doGet(String url){7 j. Z0 W: A2 R; `
- if ((WiFiMulti.run() == WL_CONNECTED)) {( }) {) @; y P, p5 Y; C! j/ I
- HTTPClient http;* j, R0 ?# c4 }
- Serial.println("[HTTP] begin...");
: g! I, F4 g0 C4 v" { - if (url.startsWith("https")) {9 C* ?) e- ~! y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" o2 n5 ~ m# t* }4 W9 { - } else {
8 S9 _, K! ? r) t2 ~ - http.begin(url);3 k" u; T/ S9 L$ q3 a( W
- }* o7 Y! [! Q5 ^2 d
- Serial.println("[HTTP] GET...");1 v2 u, v# m7 _5 m/ ^$ d" z
- int httpCode = http.GET();- n. S6 L; Y7 ?2 [4 |* I
- if (httpCode > 0) {
* P6 u8 K$ y& B; p0 g. n/ R - Serial.printf("[HTTP] code: %d\n", httpCode);
) l2 ]! L5 n! ~- ? - if (httpCode == HTTP_CODE_OK) {
/ c: c5 b! m( Y& c0 {$ C - String payload = http.getString();6 V# Y' K8 N, t( K; g+ {1 I
- Serial.println(payload);. F- r: ?" `$ D, k
- Serial.print("\r\n");
t( q6 D0 i! I6 H9 v) ~4 C6 V. w8 O - return payload;
$ _5 f$ t' z! q$ H$ Z K8 Z, H1 P - }
' w' f2 b$ x% s8 R7 s - } else {
; a) A3 `0 A: E% j - Serial.printf("[HTTP] GET... failed, error: %s\n",
7 L9 w( l) X+ c' @5 e) i; j1 W - http.errorToString(httpCode).c_str());
Z% n, W4 j i9 S8 v( K8 e/ J* a - }* P* ?) s6 J3 a# v
- http.end();
: } k9 _. H/ u8 p( J+ I - return "";
8 D* k1 y9 |: w1 e6 {$ ` - }
- k" t7 s; l) \& ]) r - }; p8 C) W+ [: m4 c
- void mainAction() {$ O0 R( z' ?/ h/ v( p7 q8 v
- // 发送请求
! ]+ M! e5 q* I+ c: h - doGet("http://google.cn");
$ N8 ~" U8 r+ P, } - }9 M' `! W; }4 I& D4 `: C
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