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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- ]8 e2 d2 g( n
- #include <ESP8266HTTPClient.h>, p$ B- m: J$ \% B; S# `
- #include <ESP8266WiFi.h>
* Y5 l; C$ _, J/ P - #include <ESP8266WiFiMulti.h>, f+ ^- z$ b f
- #include <ESP8266WebServer.h>
: O+ k- `( j2 m9 U9 J+ I" N - #include <arduino.h>
1 h' H6 B+ g" d - ESP8266WiFiMulti WiFiMulti;2 v: a, I+ W& B7 B% h: U
- ESP8266WebServer server(80);, x; Q% B& X+ D( A
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" o6 _$ X3 p8 K6 y! F U% t
- ADC_MODE(ADC_VCC);
' j' ?) l0 w/ [3 U - void setup() {
. H( d& O/ _( O$ A6 w: x4 C - Serial.begin(115200);
3 B- \8 b9 t; v: G4 }" u& R - Serial.print("\r\n\n");
/ E0 A3 ^, E3 ?4 f - pinMode(2,OUTPUT);# f# x8 y. H u) g# W
- // WIFI5 i* w3 I: ]. P* R1 V( p- w- W- b
- WiFi.mode(WIFI_STA);% l# z$ z# ?+ ~/ D. ~$ }- `1 K
- WiFi.hostname("Sparkle");1 D( U, C$ k1 z7 m1 `
- WiFiMulti.addAP("wifi ssid", "wifi password");6 i0 S# M7 O* {2 ] S& S
- int tryNum = 15; `6 f- ~1 O0 D! @7 i
- Serial.print("Connect WiFi");
% U+ B' `3 e$ v2 H! ~, p1 d - while (WiFiMulti.run() != WL_CONNECTED) {. V" A2 O" f5 N
- digitalWrite(2,0);5 t* I" E) o7 a- R: M# k
- delay(200);
/ n( t& f( p% M+ U) R5 [ - digitalWrite(2,1);
( r$ s+ G! G& V4 W4 s( r4 n% [: X - delay(300);
9 C) G' y! Q/ s4 y; o# O, O - Serial.print(".");4 |* E9 y3 V W3 K( V- `, P
- tryNum--;
, Y' i' y2 I& m- B9 C& Y5 { - if (tryNum == 0) {
6 T8 u6 Z8 t6 O - // 1min
+ j* q/ H2 c7 L0 p: Y& K" g - // ESP.deepSleep(60e6);! U# k- I, S0 b. Y8 J# \
- ESP.deepSleep(0);9 L9 E K! N F; h8 Q0 D! {' |
- }
! ~+ q! [& X$ L8 r - }, i0 i9 s( W/ W$ d9 I
- Serial.print("\r\n");
$ x5 M! b8 O8 N9 T1 H2 \ - digitalWrite(2,1);3 @7 A1 e/ g7 n |9 R# r0 N
- Serial.print("IP address : ");
9 o+ ]$ q) A& F! E- z t - Serial.println(WiFi.localIP());# o; Y: C D6 k' M$ w" O
- server.on("/", HTTP_GET, [](){
% q2 Q6 b( w- b: H - server.sendHeader("Connection", "close");" L" D8 u) I& ?, H4 {
- server.send(200, "text/html", serverIndex);; w6 F1 D; u# J
- });
. P P8 d+ d7 X8 p - server.on("/update", HTTP_POST, [](){& W6 Z; y9 \4 k# u/ |3 z
- server.sendHeader("Connection", "close");# l; m% V- O0 u, A" g4 s. ?
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
* u6 p( Y5 `% ^0 ?- Q4 @! v- U - ESP.restart();
- `4 f0 j- }4 v0 a - },[](){
0 j( ` ]$ I" W/ J4 y; ^5 i - HTTPUpload& upload = server.upload();
* W3 s- D( h: Z9 r1 Y - if(upload.status == UPLOAD_FILE_START){ {6 m, E9 ~6 q2 W; }+ I
- Serial.setDebugOutput(true);1 @. Z. @# X( k, w
- Serial.printf("Update: %s\n", upload.filename.c_str());# t+ Y& m8 k( m
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% g& J# r W; h' m. d9 T6 @. H# x
- if(!Update.begin(maxSketchSpace)){
: K3 u M$ O p& s* r& |8 C - Update.printError(Serial);' u1 c; w: [0 `+ N9 c
- }/ s n+ a) r1 V) ]; H' _
- } else if(upload.status == UPLOAD_FILE_WRITE){2 _! m! }: ?" o; C- |7 V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# V# {, C4 _5 a% G W4 l4 }0 Q- ?0 R
- Update.printError(Serial);
9 [2 {6 H4 S9 u! O5 ?. J6 N - }
) P* y( m& H% O. s6 _6 X( [ - } else if(upload.status == UPLOAD_FILE_END){
: r) U5 v5 @+ m0 M) n7 C" Y I - if(Update.end(true)){
- L$ X. M0 O( `' ^ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( d! \, X+ w& a7 u- w - } else { H! k% J8 d4 A8 @: M7 i
- Update.printError(Serial);
1 a+ q1 |$ A# c' u4 b# j' r - }% M' H7 S* Y* F- q5 D1 j
- Serial.setDebugOutput(false);& j. P6 R, X f4 I O
- }! J8 b7 [) H% G+ H0 `) D
- yield();
6 Y4 J8 B/ }) |; @; F - });
0 w1 S" S- I4 C% G" m( ] - : K! t# u' p& {0 X* @% T- {
- digitalWrite(2,0);1 L6 h) m3 g* d6 o+ _2 R
- mainAction();. F0 L! e3 z# ]! K# ]
- if (digitalRead(0)){4 q- W1 W/ U( G& j9 T& f: U8 l
- ESP.deepSleep(0);% h' p, q1 g7 o7 k. s5 Q
- } else {
4 A2 L0 ]; {. W7 R - server.begin();
" L3 o0 C( e5 h - }
) a* ~/ |. j/ ?" v* j6 D" | J0 ] - }& N; `* v* a* |% U# D
- void loop() {5 z0 d/ b6 s) L* C+ l" a& w
- server.handleClient();0 v4 e1 ?# ?; `' b9 b- J5 t
- delay(1);
/ t4 k; v+ ?- R, v% f0 O - }- O3 K( c/ ?" g6 A: Z/ l: d
- String doGet(String url){
5 l2 x! p8 w! U3 g7 X - if ((WiFiMulti.run() == WL_CONNECTED)) {
: Y7 d" C' @& n/ B- k$ ` ` - HTTPClient http;" k. V$ J* ?3 L2 x3 I1 C1 u+ w I
- Serial.println("[HTTP] begin...");' i( M6 ^/ z _4 _9 |
- if (url.startsWith("https")) {
3 D* L6 X( B& ]( r! H* [* W - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 Z$ @: |7 L7 Z. a7 H' z* ~
- } else {4 U1 \; `; e# F: Y; i6 u! {
- http.begin(url);! S) X% y! B" f3 r& s* j
- }7 _- O; R: D/ E+ O# x
- Serial.println("[HTTP] GET...");- v8 Q" T4 U- ?
- int httpCode = http.GET();
4 x3 d: x* n& K - if (httpCode > 0) {: P# z7 o0 Z. g; h
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 m' Z x- U: O% k! r V- z2 ` - if (httpCode == HTTP_CODE_OK) {
3 I5 Q- ]4 f! {; e - String payload = http.getString();+ ^2 @1 y" H2 ?) y; j
- Serial.println(payload);
0 |5 ~$ f( L- T, V' o5 t - Serial.print("\r\n");
! T1 }6 r% G* y4 A! p3 {+ P - return payload;4 s% D+ K5 d$ B8 _' C1 `0 K; L
- }8 y! N4 ?, L* z. `# S N1 U0 t0 b" i @3 [
- } else {
* F/ j$ P* J4 }3 s) o - Serial.printf("[HTTP] GET... failed, error: %s\n",
* Y3 G2 ~* k8 u/ e) p8 }+ S% N - http.errorToString(httpCode).c_str());8 G/ r# |* m. O8 M& J: b# n; V
- }
; X# L: h5 Z5 q1 E - http.end();
* d7 \6 J; c1 ]$ k8 u E+ W - return ""; a. r6 Q) C* g7 k2 Q3 c9 S9 k! F( m, E
- }+ J7 n1 \9 H* ~1 a
- }
& T$ ]/ n/ {) F H$ [- [ - void mainAction() {
$ l3 I' a; N0 [- e. T% |, y- ]) L - // 发送请求
6 r2 n$ I/ O7 ^1 @ - doGet("http://google.cn");
0 O3 w4 U) ^" @8 }4 ^ - }, V+ b, A! l. v2 X
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