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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 S, o: t: j+ [# A4 [! M, t- #include <ESP8266HTTPClient.h>
+ \9 r0 }7 V+ Z6 M; k - #include <ESP8266WiFi.h>8 ]( ~0 t+ Z+ I, M. d8 z$ U; x
- #include <ESP8266WiFiMulti.h>
* z6 o; u7 W! h6 L$ b; A$ i - #include <ESP8266WebServer.h>, \3 @" {9 s! \
- #include <arduino.h>
! x+ w( Y+ _1 E- h& l2 |" u1 J$ [ - ESP8266WiFiMulti WiFiMulti;
" E9 R; q$ h0 I7 D - ESP8266WebServer server(80);/ ]% c' k) L: s7 n: A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
% Y {1 k8 x) ] - ADC_MODE(ADC_VCC);
0 `8 s7 `$ X7 a# G# u - void setup() {
% U2 x0 n% D' V; j - Serial.begin(115200);
* l9 S0 N( L$ a; q1 t' O& ^# N - Serial.print("\r\n\n");
. e+ _2 M$ y! Z* C6 @, G - pinMode(2,OUTPUT);/ i p- }9 j' l# G+ N! b* i
- // WIFI; a+ ~$ V" V: W, | ?5 v
- WiFi.mode(WIFI_STA);( Y6 a2 \( V3 ]! r/ Z4 S7 |
- WiFi.hostname("Sparkle");! y. ?. J& o ^7 m0 _) E# X
- WiFiMulti.addAP("wifi ssid", "wifi password");) H7 v* v+ Q' e( q5 I. g: N
- int tryNum = 15;& h( ?& j1 g9 ?) u Q6 J
- Serial.print("Connect WiFi");
1 k) |; q8 _0 j5 d8 R# m B) i! ` - while (WiFiMulti.run() != WL_CONNECTED) {) O* y5 H& M6 v t. u
- digitalWrite(2,0);
# T$ T3 [3 e, X C" e - delay(200);
5 g/ B- m3 K) ?+ h1 Q( Q4 d - digitalWrite(2,1);
/ i) J7 Z# A3 C7 T& n - delay(300);
, j% | {' k s# U1 _3 r - Serial.print(".");; I: E7 v1 `! W3 U
- tryNum--;: n4 v/ E# C% I7 [. `. j3 M
- if (tryNum == 0) {
( W# w2 F" u1 J - // 1min9 q3 ~/ e# |# a. E( U
- // ESP.deepSleep(60e6);5 R+ g# h6 |; E' \
- ESP.deepSleep(0); `0 }# A, b4 s0 @7 |5 [) c
- }2 Y. t! T6 A- t* C& o: f4 r( u
- }
' |- h1 o( o: N6 \- W - Serial.print("\r\n");
I' Q2 D) Y* ^- s( T1 |& l6 [: ? - digitalWrite(2,1);: Z+ p8 V7 |& x# M2 f: U
- Serial.print("IP address : ");4 R. K8 j* h8 i' r) r
- Serial.println(WiFi.localIP());6 {+ J# A; R+ h% T0 k
- server.on("/", HTTP_GET, [](){/ C3 U2 h$ E" k
- server.sendHeader("Connection", "close");9 x3 q7 i8 H4 M$ s0 l( k
- server.send(200, "text/html", serverIndex);& ^" h! o- f3 Y7 M1 ?2 ?! H0 U6 y. y
- });
$ \- j* d$ r8 n. | - server.on("/update", HTTP_POST, [](){
6 E# z+ i$ g1 P. a - server.sendHeader("Connection", "close");
1 V/ ]* E: d) ]4 \. E; H- U - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");, b) y1 n5 D( J' U
- ESP.restart();! i6 I9 @; v! W5 s9 t4 s
- },[](){9 z! u; B# Y5 l: p8 K* V
- HTTPUpload& upload = server.upload();0 F6 c/ m% [6 i% N! `: m
- if(upload.status == UPLOAD_FILE_START){+ C. k1 h" ]. B& y: T
- Serial.setDebugOutput(true);
: G4 P; j3 r& B, P: E - Serial.printf("Update: %s\n", upload.filename.c_str());
2 F* Q# ]! [1 ] ~% a - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. L8 @# X" A6 b6 N/ Q - if(!Update.begin(maxSketchSpace)){
+ f# i' F2 _6 B' N* k - Update.printError(Serial);
' M2 F1 G1 _" E+ H& @0 t8 p: _ - }
; `& p, t( s2 X6 X; [* Y' X+ p - } else if(upload.status == UPLOAD_FILE_WRITE){
, [% u: b# W+ B# ~- w9 R - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& @# _- L' l7 T+ E
- Update.printError(Serial);1 p$ H9 i% M7 R k
- }) r H& C, h: V% U
- } else if(upload.status == UPLOAD_FILE_END){0 ?) C+ k' `4 @' x# F
- if(Update.end(true)){) _9 h; V$ Q' t0 {4 V/ E. p
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' U L" M. }% Z8 S/ V5 B/ n: Y - } else {
9 n4 @, R& H; A1 U - Update.printError(Serial);
9 h j1 ]% l% Y2 r - }$ j' a( S) S; B( e ?, `
- Serial.setDebugOutput(false);
/ X. H B& u* {$ @% Z9 ? - }
2 U$ g }( e0 S9 v. O" L - yield();
+ }! d6 l) r0 o* N4 x' Q+ e8 m - });
0 } q& `" A% Y; r! x* s' q -
4 h0 g* d2 d8 O' G( ?, J, Y - digitalWrite(2,0);
! k0 P8 T: X9 V+ D - mainAction();
5 W. m" ~2 g# p+ i5 q! u - if (digitalRead(0)){8 z+ o: X! l3 ^. ^8 \% e/ i
- ESP.deepSleep(0);% ]% i9 D* }3 v+ q6 c, }4 _, k! e
- } else {
" a: z$ |* {5 ^ - server.begin();
0 b6 M3 ~) b# t+ a7 ^* r - }
0 E. N9 a# u1 G0 q* C - }8 U& N7 e4 X( W; P- u
- void loop() {
7 c& f& ]1 B0 o$ w/ \ - server.handleClient();
. J* w3 d5 q7 d( ?+ a+ J+ [ S+ u! i - delay(1);
6 W& `3 c9 S. V4 f# ?3 m( V2 a" a - }
8 M$ M: [+ d4 W& \5 K8 \ - String doGet(String url){
: a9 I; \3 B) f9 U7 a- J; ` - if ((WiFiMulti.run() == WL_CONNECTED)) {
6 F4 I7 ]# z* N6 g - HTTPClient http;- P& ]& v# t4 s2 x9 b" t, {+ d% S
- Serial.println("[HTTP] begin...");: R* T; Z! M4 E4 T+ I; _
- if (url.startsWith("https")) {2 N2 @" M0 v* ^
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
( u# V, q# I" y8 k4 l - } else { Q3 C, X) C8 e* w: u
- http.begin(url);
2 i* t% _/ ~' }8 s* C2 V I - }% N9 L X1 Q% ]5 M8 `
- Serial.println("[HTTP] GET...");
5 _$ q" x C7 L# g7 T: v - int httpCode = http.GET();
- g+ y' k7 K# t- F - if (httpCode > 0) {
: N0 g; g# g' N% ~) x- \ - Serial.printf("[HTTP] code: %d\n", httpCode);
1 A% k. B2 s" R5 } - if (httpCode == HTTP_CODE_OK) {
, d. e8 p8 z1 h - String payload = http.getString();
$ d5 k. ?2 K% A# U# I2 g - Serial.println(payload);- [6 W- m0 P2 M" [
- Serial.print("\r\n");7 b# c# M- F+ O- f8 z- s( P1 ~3 B
- return payload;# ?+ `0 U( T( t) @" W
- }
0 O/ e! `8 y2 C2 H# e0 |$ f5 w" x - } else {
, l, R/ K6 R+ v z r% u; u - Serial.printf("[HTTP] GET... failed, error: %s\n",
' o- I% [! U% `: o+ c P - http.errorToString(httpCode).c_str());
" ? y" U- @7 f) R* b, } - }1 x0 k. X' }1 S! {" i; Y
- http.end();
, y1 B6 B* r) D. q! ]6 T - return "";) F2 ~# @2 e, S9 g' Y: g4 A
- }. l9 R" _! @% K, H+ u0 D" b4 S9 U2 Z
- }
4 h) v$ y+ U8 B - void mainAction() {/ _2 ~/ `& R4 D; ^/ h
- // 发送请求) N3 e* j8 }: a) O& {
- doGet("http://google.cn");- {3 [; S# u; b) ^
- }; o, l2 `2 U5 a( N' H8 w% B
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