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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)
3 |/ ?& k: T" Q4 m, b. U- #include <ESP8266HTTPClient.h>, [( ~7 t# a2 r' j' b1 L3 k
- #include <ESP8266WiFi.h>
" R9 @1 L7 O. L - #include <ESP8266WiFiMulti.h># ~7 \8 _ @9 q- X
- #include <ESP8266WebServer.h>
* }4 W- [1 ?2 i0 K( p+ g3 } m( J/ P) D - #include <arduino.h>) I! g. i5 I1 g0 k$ C
- ESP8266WiFiMulti WiFiMulti;
* z3 l% v( R+ @# R! W- O( N! B - ESP8266WebServer server(80);
8 J/ P: a. t+ t! I, I5 K2 H - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 F, @. K# u1 t; h2 e
- ADC_MODE(ADC_VCC);
. z5 X0 Q: ^8 R; b& | - void setup() {1 L2 D! y" N1 `* b& C2 k
- Serial.begin(115200);) R d* _5 }1 }; g8 l3 \1 }# f. J" e! ?
- Serial.print("\r\n\n");
. C; Z- ~6 h, F6 y - pinMode(2,OUTPUT);+ a" d$ d0 x" I/ U
- // WIFI
$ _( T/ q2 Z* A) Q; F* b$ E - WiFi.mode(WIFI_STA);8 A5 Q4 L4 l1 ~5 f
- WiFi.hostname("Sparkle");
O$ t$ \6 R* m! _ - WiFiMulti.addAP("wifi ssid", "wifi password");% i. R! t3 y5 r
- int tryNum = 15;
$ P2 {; L* V/ V) R/ } - Serial.print("Connect WiFi");+ b+ X6 Q- |* f
- while (WiFiMulti.run() != WL_CONNECTED) {
, u; r' A; r& N: K9 _" ~0 v - digitalWrite(2,0);
: u* V& H9 p+ C2 b - delay(200);
* E' U9 ~0 I. B4 |; v, h3 k - digitalWrite(2,1);
. e% ~; c. `2 l - delay(300);- R* v, Q4 R; F* w3 l3 P
- Serial.print(".");
- ~" A* @- ~4 a( u3 D; b6 V) T2 K - tryNum--;
% l+ ?8 y( s! R5 w& l: | - if (tryNum == 0) {
( l8 } T6 A) ? - // 1min3 g% l: G2 { Y [# ]& e; q
- // ESP.deepSleep(60e6);/ O u, Z# P2 y, [/ h
- ESP.deepSleep(0);& h1 q$ S) U2 x, C6 u8 e$ T2 U
- }
' G4 b. h: S0 D( p' L4 P - }- y" T: s5 S" O1 v
- Serial.print("\r\n");0 n' ]0 Y/ K" h. n, Z" a
- digitalWrite(2,1);; R4 I, w* _1 i; v0 V# q% x
- Serial.print("IP address : ");
* ?* ^: I0 N. z, @" ~- F - Serial.println(WiFi.localIP());4 E% s$ a0 H. |- Z/ ?
- server.on("/", HTTP_GET, [](){
Z/ D5 G7 W* h6 _1 H$ c$ x7 G - server.sendHeader("Connection", "close");
' @3 |- w+ y e- k6 _6 h - server.send(200, "text/html", serverIndex);
w# W3 @ Z w% v% C - });0 ?. v( ], N+ y$ u2 i
- server.on("/update", HTTP_POST, [](){
$ Y$ U" b. |1 A6 Y8 \, \0 Y - server.sendHeader("Connection", "close");9 ~$ X5 z$ d* u# h- H% V
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# o. m1 c! \* s; u5 K. ~ - ESP.restart();
# s; X0 _% w* q - },[](){
; R" v4 w W8 s; P7 a& ~' O - HTTPUpload& upload = server.upload();
3 ^+ G; Z) Y7 m! p+ f - if(upload.status == UPLOAD_FILE_START){( D0 j, u- x% `3 x& H5 n0 m
- Serial.setDebugOutput(true);
" P s/ r8 S4 f. R, K( E4 p - Serial.printf("Update: %s\n", upload.filename.c_str());
* V( T" A5 [5 ]% L5 s* m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& f: E. Z) Y4 f2 N3 z4 w5 @1 ?% b
- if(!Update.begin(maxSketchSpace)){/ j8 V: P2 ^2 A8 b, Q
- Update.printError(Serial);/ ? W" l; b# B# X
- }( \( I; N! N1 Q( D1 | @4 q
- } else if(upload.status == UPLOAD_FILE_WRITE){2 {# F V' k8 W
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
" g# `& n- Z" l1 Z5 @ - Update.printError(Serial);7 e9 {8 _: P8 _0 B( {
- }; K n, y& ?8 `8 }! u9 Z/ A% Z
- } else if(upload.status == UPLOAD_FILE_END){
9 Y- C0 N1 j2 _% V - if(Update.end(true)){
5 _6 z. W- I' Q- h& { - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% U) X& N' P; ^5 P7 O- D
- } else {
' X/ }+ {& X6 Y8 ]8 R% P - Update.printError(Serial);
( _: y9 z* d' z6 T6 _$ A - }! {: P6 Y# L/ K& K" N( U5 G
- Serial.setDebugOutput(false);3 z) \8 M4 U" a6 Q6 L0 A# u2 l$ f" G
- }
" t% F; D+ r; H+ V$ e8 e8 M" _9 l, Q - yield();; v$ y5 `* J* U, W5 z' `
- });' ^# g$ A+ V2 F6 a
-
8 I) X+ W( d6 R& _) ` - digitalWrite(2,0);7 y+ ^* [7 P& M" n3 o( \, v
- mainAction();# b" f# Y5 r/ J7 X1 \* @! O
- if (digitalRead(0)){- v6 n4 S: M f H4 x9 e) H
- ESP.deepSleep(0);, E: H7 W* g; b
- } else {% e- X: A) `! m3 V
- server.begin();
. R8 A9 ^8 V0 `+ N$ g - }, d4 R" C! {* f& R7 a
- }* Y# T& O% b7 W3 U! t4 s; [. |
- void loop() {$ V" z2 Q) i7 } y' ~
- server.handleClient();
/ ~2 Z6 l; O2 c6 f& p0 Q9 t - delay(1);
) k3 {) O- \7 r5 B# O j$ @ - }
& T( P7 t3 q1 b$ i - String doGet(String url){7 A! j# j8 K' J9 V
- if ((WiFiMulti.run() == WL_CONNECTED)) {/ Y/ `# b5 w$ W0 {: c p$ a
- HTTPClient http;
: U: A9 O$ C$ b, C3 K( f - Serial.println("[HTTP] begin...");3 l8 r8 o7 d" x- ^* Q. T
- if (url.startsWith("https")) {
& W4 F+ y1 g5 G) c - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
M% l# M: \& B9 d) l8 N - } else {' n1 ~3 q: N; v6 |$ ?+ ? }
- http.begin(url);& M; G/ Y! E3 E$ P2 H) z
- }4 H& ]8 S$ k( Y
- Serial.println("[HTTP] GET...");8 ]7 ]( ?6 i1 c6 e8 u
- int httpCode = http.GET();/ v* J% ^) C% O' `9 e
- if (httpCode > 0) {
5 X! N$ J/ s) W$ o6 R% q X - Serial.printf("[HTTP] code: %d\n", httpCode);
1 F" b& a" h6 K- C( P* {2 Z - if (httpCode == HTTP_CODE_OK) {
* S) E+ I4 B K- ~/ f - String payload = http.getString();
; W5 G. v( H2 h& b - Serial.println(payload);+ O) \& Q1 m0 t# _7 `5 R
- Serial.print("\r\n");
! X1 F$ Y$ x) Y& F' q% W& y - return payload;5 F5 q/ ?$ o% m7 x) X s* }8 {
- }; T; {7 |: g8 @
- } else {) T1 N, Q' V y. k; A4 U
- Serial.printf("[HTTP] GET... failed, error: %s\n",9 {2 l) u/ q8 ]
- http.errorToString(httpCode).c_str());# h* @* D( d. ~% T9 j9 L4 n
- }
v) ]) T' ?% U. X - http.end();$ E" {$ T. k( V
- return "";# v3 Y2 t0 o& {) c" n7 }1 E4 c" c
- }
+ M2 l- B7 l$ ~" l - }
, U2 z l; ~7 {4 R& n4 q4 y4 F! K - void mainAction() {: g6 b3 s8 D) L) `1 Y
- // 发送请求, A/ F( ?$ t, W' {4 Y7 E% U! [" m
- doGet("http://google.cn");0 o3 m. `/ P$ T4 q* Z
- }
: G1 r1 J- f: h
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