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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)
. c5 R3 {( e% }( ^( m3 e- #include <ESP8266HTTPClient.h>
0 M# _% k! {4 W( {& J- Y& T) b8 p. W - #include <ESP8266WiFi.h>
! n2 g1 A) |6 i& A6 _0 U* ? - #include <ESP8266WiFiMulti.h>$ |5 z7 w; [5 z! ]
- #include <ESP8266WebServer.h>* _. E) S6 F& I8 \! I' j4 z
- #include <arduino.h>- D3 s' C7 [8 Q" }2 }
- ESP8266WiFiMulti WiFiMulti;3 Z; `/ S/ G; [/ y3 t6 J7 P2 e
- ESP8266WebServer server(80);
x7 | W+ ] `4 J - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. F5 `, m+ v. v5 e7 ]3 I9 ]1 K8 Y - ADC_MODE(ADC_VCC);
6 a( ~4 X9 ~% _+ S1 {) w - void setup() {* b) v0 y U0 H. D/ E0 P
- Serial.begin(115200);5 p) K) E3 y- Z0 T4 ]
- Serial.print("\r\n\n");
. G( p+ {4 S7 I0 v, V1 L - pinMode(2,OUTPUT);8 r4 u$ Y7 z' q6 X0 g3 E# V
- // WIFI9 `- k# z3 n- [! u+ E
- WiFi.mode(WIFI_STA);* z7 a# [) G4 x0 ]: V
- WiFi.hostname("Sparkle");$ T$ I* u: V U V7 l
- WiFiMulti.addAP("wifi ssid", "wifi password");
) i( Z2 Y0 b, ~ - int tryNum = 15;$ N" L# A6 S+ H' m
- Serial.print("Connect WiFi");
7 M% w' P/ W- P9 }' m1 z8 u% ?+ [) G - while (WiFiMulti.run() != WL_CONNECTED) {
/ ^# w3 |5 r* ?- X$ ^, ~6 _, z - digitalWrite(2,0);
. s, l& }- e9 j. s - delay(200);: y4 i' ^* [7 O7 B% P. J! z
- digitalWrite(2,1);: x8 s6 T8 E1 l4 t7 r
- delay(300);
% _8 J$ U' w6 X& v - Serial.print(".");
4 e+ v7 L9 ]3 G - tryNum--;% q0 A) E- j7 X0 a# K
- if (tryNum == 0) {) \: ]5 s) S) P0 L* w+ ~0 L G
- // 1min$ e Z, o! U- ]2 J
- // ESP.deepSleep(60e6);. b" |+ [2 w! k
- ESP.deepSleep(0);2 z: J5 A5 c8 J
- }
1 m( t( G, A$ q3 W" u/ ^, t# T - }
% N% A2 z& n/ L4 c - Serial.print("\r\n");
! R' P/ I2 x* @' k& X1 ] - digitalWrite(2,1);2 y2 M7 E# _& i2 x* x; q* f
- Serial.print("IP address : ");
/ l! N- {- `( c1 s, r - Serial.println(WiFi.localIP());
' u# Q2 V+ ?6 @. w4 R - server.on("/", HTTP_GET, [](){. m/ H& N7 P( r3 W9 X) `
- server.sendHeader("Connection", "close");
% l9 ]* h/ \" @* m1 h! @' ` - server.send(200, "text/html", serverIndex);
E# l/ D( r6 q1 n9 @$ A - });
7 L9 X+ |, F0 R - server.on("/update", HTTP_POST, [](){9 ^" G# O/ t9 h
- server.sendHeader("Connection", "close");5 u1 ^$ {: @9 |% X: t% ^
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- w1 I! C9 u" D- B - ESP.restart();; ~; c1 t# }5 Y5 j o/ \" J% U4 e
- },[](){
" ?: s- g. H/ R0 ]2 w5 a" I" v+ Y9 R - HTTPUpload& upload = server.upload();
2 T" M( m% m+ E# h5 @ - if(upload.status == UPLOAD_FILE_START){1 {1 ^' ?# w4 O
- Serial.setDebugOutput(true);
" P( y) [: B/ S+ {* U; ]* [ - Serial.printf("Update: %s\n", upload.filename.c_str());
4 s6 f9 h1 @. a" Q- H" P" B) ?3 o - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;6 a4 i- |1 L" H0 M5 J4 E) H, \
- if(!Update.begin(maxSketchSpace)){
: ]! t) J. w' W c& T+ V - Update.printError(Serial);
; [" \9 j% p6 i6 I - }
0 W, K" X; m# i6 r, k" U3 X - } else if(upload.status == UPLOAD_FILE_WRITE){
0 l! F" r$ z. ^; m - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){4 H" j8 ]9 Q; O( u) E, T
- Update.printError(Serial);
: k) ~2 H6 G1 S - }' ~8 g% y5 E- c, `
- } else if(upload.status == UPLOAD_FILE_END){
6 l w/ G* ?2 ` r; k - if(Update.end(true)){
y/ _7 o$ ?( x4 q! H% O0 _ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
~( B0 D( P, B" M9 z! H8 b. I - } else {
% W) [* ~3 D0 F' I* w v - Update.printError(Serial);- G. j3 g' ? l9 J5 V5 k
- }
' L/ e. x9 p7 \ - Serial.setDebugOutput(false);, Y f( A2 o3 n% \
- }: g/ P4 `7 r" M. l$ ?2 v
- yield();( Y3 M9 K3 g8 ?; k- |8 Y$ s
- });
: S0 O Q; d' x -
X0 |( f& _4 d# D' b8 b8 n7 Z - digitalWrite(2,0);2 Q& U% E k: V- r
- mainAction();
f- t Q* E" ~ - if (digitalRead(0)){
/ d; A4 t& v# \7 t% ` - ESP.deepSleep(0);( e9 P/ x$ l/ K5 ]3 _6 r
- } else {$ r. E$ H5 R0 d8 Q& o' {3 C# t
- server.begin();' n o3 f6 P$ x p! ~' h3 U
- }8 o& Z. h# W1 B& p8 d
- }
8 s0 k) L* x+ I: r, ~; Q; a; P - void loop() {
5 d) O" y5 b5 Y" s4 C% V, N; Q% m - server.handleClient();
1 p* U7 N5 j! u0 Z - delay(1);
* `6 i( H- P7 q% b - }5 H: I; ?% z' [" O* L
- String doGet(String url){
$ V# \: \- e2 E- f; H( _ - if ((WiFiMulti.run() == WL_CONNECTED)) {2 i6 ]# m D7 k0 o
- HTTPClient http;
" U2 U* h2 g; b6 S/ p( X - Serial.println("[HTTP] begin...");
+ r+ |: U+ f E( w. J( k' Z& |2 P - if (url.startsWith("https")) {
6 {" i6 K$ X8 f8 l7 a - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");9 @6 g* a! V9 g( T2 M" C
- } else {
' n2 k- f+ v2 l/ r - http.begin(url);, {: t7 p0 Q' K5 F0 w u& O
- }1 s. U8 k- u) K
- Serial.println("[HTTP] GET...");
! Z( O0 d2 o; k& C' |7 c5 | - int httpCode = http.GET();
% ^- M3 s c7 n0 C) J7 h% j - if (httpCode > 0) {
5 e0 J- P0 U/ Z# V, ]/ ]+ Y; L - Serial.printf("[HTTP] code: %d\n", httpCode);" k+ d, o' L; \; r. G
- if (httpCode == HTTP_CODE_OK) {
% X# Z, [2 o3 D7 N - String payload = http.getString();' u0 Z. B; f9 B( @/ D
- Serial.println(payload);6 L0 \& N+ |+ k6 m p% B- ]
- Serial.print("\r\n");
+ h. o9 ~4 q/ Q' D- S' X4 ], f; w - return payload;# O6 s- k% c& b: B3 Y
- }5 @. h' L% ~% ?% u7 q$ t
- } else {6 m! R8 h+ n8 |) e
- Serial.printf("[HTTP] GET... failed, error: %s\n",
, F; a1 |3 L6 N" `& k5 B - http.errorToString(httpCode).c_str());
& s& C4 ^3 O i; @' n; H - }
6 U8 {% J8 V( t2 p8 q - http.end();
5 {- |: d# R/ M: n, `! `& K$ u - return "";
0 p! n/ G2 n% s+ W% l - }( o% l+ J9 ]& w% m# M4 j5 {1 `* f7 d
- }
& f2 H- t4 \& Z5 a) k' f; H - void mainAction() {! Y4 C# b. e3 E! E5 Y) P2 [# f5 h
- // 发送请求! l2 ]- r# s3 V& ^+ k+ T/ k
- doGet("http://google.cn");
3 Z, k6 M- a6 c$ M; x9 E# j - }" c3 U. u9 G% e
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