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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& }1 H& g& W' G+ g- #include <ESP8266HTTPClient.h>
! T6 S1 u2 ^, a$ D& N& w( G( V - #include <ESP8266WiFi.h>
; k* u1 s+ x0 F" R; x8 c - #include <ESP8266WiFiMulti.h>; y# l/ X( ^* ^ e
- #include <ESP8266WebServer.h>
# ?9 C+ v# K% o8 x/ [ - #include <arduino.h>
+ P' F% g9 H7 Z# G* F0 V' o - ESP8266WiFiMulti WiFiMulti;
3 s. U( ~- N4 I* i8 j7 e - ESP8266WebServer server(80);# R( p0 Q6 K* L9 Z0 ^0 R
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# K$ t) b! M- C( h' ^" q - ADC_MODE(ADC_VCC);% h7 x. ?( @4 V
- void setup() {' u ]4 F/ R) w4 M. {/ N4 V
- Serial.begin(115200);
* E+ L. w _8 _' R& F$ T3 o - Serial.print("\r\n\n");, J/ c7 E+ q' D A0 ]% z) v! ] u. }1 O
- pinMode(2,OUTPUT);3 y; I& Y0 j7 ?1 \% w) D- q0 a& n
- // WIFI
( G! X F7 }# t# T6 M - WiFi.mode(WIFI_STA);9 h E! G: U/ p% F8 W: A+ H5 T/ k
- WiFi.hostname("Sparkle");! `4 t, P+ q. n# s# {
- WiFiMulti.addAP("wifi ssid", "wifi password");
1 ]: t+ w( k( [$ L5 f5 i - int tryNum = 15;. a0 K; L6 J$ B: _
- Serial.print("Connect WiFi");
! r2 p p1 }- ?! l' F' D9 d - while (WiFiMulti.run() != WL_CONNECTED) {2 D+ U: v3 G u5 J' B
- digitalWrite(2,0);, \0 O5 U6 B$ e
- delay(200);. j6 R. M' N: E: C
- digitalWrite(2,1);
2 ?. r! M1 c1 o T& r' N, Y( N% g7 n - delay(300);) e$ p a* W% l
- Serial.print(".");
6 I0 B: ^* P4 F5 a3 T' g5 L' { - tryNum--;" m9 u) F8 |) f
- if (tryNum == 0) {
; k7 M, T8 j2 g - // 1min
% D8 t+ `% n2 Q& s+ d) N - // ESP.deepSleep(60e6);
: l0 M7 ]/ [6 W/ T/ M# E7 |4 Q8 W) x - ESP.deepSleep(0);) O4 y0 R+ n6 ^. ^
- }
- g7 {3 D+ T# |" ~ - }$ F6 S( i: z' d: }6 I! n b
- Serial.print("\r\n");
$ V5 y# L8 h. `+ B - digitalWrite(2,1);& h: u- U J* }+ |
- Serial.print("IP address : ");
1 \) D2 {3 O" X3 \4 l - Serial.println(WiFi.localIP());# Y' A5 z" I! I6 }5 T6 [+ i. }2 a3 m
- server.on("/", HTTP_GET, [](){
/ a, y2 f( _) h- y. I; f8 Q) K - server.sendHeader("Connection", "close");( w1 K4 S/ {1 j6 r3 B8 ?) i; p
- server.send(200, "text/html", serverIndex);
+ C# i4 u9 \5 |3 U - });
# S2 t+ r' h8 @, E. H X - server.on("/update", HTTP_POST, [](){
3 z& @. o; O% X+ _' B2 W - server.sendHeader("Connection", "close");
& Y0 m+ S# R! o7 M' d# e7 t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 D. [& S$ S7 K \- h - ESP.restart();
. z- X& h; _) c - },[](){+ J2 F4 G5 _9 n: Y4 |0 h
- HTTPUpload& upload = server.upload();
! M) G8 s2 Z% S5 S. U: l - if(upload.status == UPLOAD_FILE_START){, ?8 c( N+ Z9 h8 k2 c+ v- V* A2 r
- Serial.setDebugOutput(true);
& A4 `' Z% M w. S7 N. N - Serial.printf("Update: %s\n", upload.filename.c_str());0 i- l- r5 R( k: w, ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;# l! Z/ Z" W5 i/ v4 L: p6 B6 t8 ?2 b
- if(!Update.begin(maxSketchSpace)){! q2 Z+ _! J4 N
- Update.printError(Serial);: H" }+ \# E1 X" Z
- }
" i, b7 A- ~, M) R$ u - } else if(upload.status == UPLOAD_FILE_WRITE){
2 C" q8 j% r% N) V0 k* j# M: Z - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){! w2 e/ V% o% g! L1 g1 v
- Update.printError(Serial);
& f/ `" G3 E( u- J9 {! g3 k8 [: K - }- U6 u# v% R) C) q; n
- } else if(upload.status == UPLOAD_FILE_END){
) G2 w5 k: d" o* B - if(Update.end(true)){
+ i9 n5 y! ^1 M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' [. n7 I+ g2 [, ^" ~. Z - } else {% ~' [2 j9 T; w4 d
- Update.printError(Serial);
7 ~- I4 ^& N8 E+ |% ?. d% t - }; R0 W1 b0 W0 o" p; U. w/ R
- Serial.setDebugOutput(false);
! C1 n! C7 s- E; g5 K0 j9 L+ l( l - }
) `( `& q0 g4 f. p: P# O9 N8 C3 y - yield();
( H5 f7 \1 C* a" B; F6 H$ J4 b - });+ j3 _+ M* B& W, O! Y7 U
- 5 j9 c$ m+ u* m8 d2 U3 Y' {
- digitalWrite(2,0);: g- a- U4 {. f' M& _
- mainAction();
4 q2 c6 S) L& ?9 M$ v - if (digitalRead(0)){
& V! {' R8 [; s) J* m: S - ESP.deepSleep(0);
' O$ T: C5 R) g. u1 `! l - } else {. d- B1 Q& V* q) m6 y* ]+ L- }
- server.begin();: Z$ n- |# H0 `* f: U& A
- }
/ U. C3 q( f3 K5 l5 D% @8 Z - }
) l% R* d1 g# `' e2 u - void loop() {) h0 K% f# r' {5 _1 I
- server.handleClient();
0 n e% D2 t- y/ O1 } - delay(1);% l7 [; y% t Q) H2 F7 s
- }
( P" k5 y3 l+ j/ v w* V9 X1 V - String doGet(String url){
. p- z' B' {( Q! L4 L0 K0 Q4 ~ - if ((WiFiMulti.run() == WL_CONNECTED)) {3 `1 V% }! w E% ]* d
- HTTPClient http;
' v9 ?$ z' X% x0 z) P6 {% Z1 [ - Serial.println("[HTTP] begin...");( s6 ~% \" C G, q
- if (url.startsWith("https")) {
6 r! o! I8 }6 `8 o9 s; C0 g - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) T0 n) r$ `/ L: L7 p& f- N) a+ ~
- } else {
( T, d$ ~; _% s* \% [2 ~ - http.begin(url);4 V, o& k1 l) k3 x& X0 W! a/ s9 c
- }
: M7 e( U% _8 m ?" p8 s2 A - Serial.println("[HTTP] GET...");- N; o6 W, y0 ?: a4 e8 j$ R
- int httpCode = http.GET();5 O5 ?% z _' P1 G# T* z
- if (httpCode > 0) {# ]! L3 R* Y6 F4 c J8 ~
- Serial.printf("[HTTP] code: %d\n", httpCode);3 y/ M& ~* f: Y' c6 H' I
- if (httpCode == HTTP_CODE_OK) {
( I! R1 L! w( J ]5 C - String payload = http.getString();2 x/ f {/ q: j' f! I0 h
- Serial.println(payload);
' h6 K$ n6 J& G. {" J% G - Serial.print("\r\n");) r5 l9 [4 r7 p1 _' u' x' Y* r
- return payload;7 g, E% G7 i& L6 r* u) t* M' q$ J
- }
/ B- A& y* x. ^$ y- t# V2 R - } else {
; ]( f& R" F9 B0 k8 P, A - Serial.printf("[HTTP] GET... failed, error: %s\n",
) ?/ p1 ~' [+ {+ }2 n - http.errorToString(httpCode).c_str());
5 I0 o. _- L* Y3 r: V - }
3 f# k# N$ m, H; G0 \& _ - http.end();
: D) }; C+ i% m. n - return "";; A% C4 F3 x6 e o
- }
0 e& m& M) H1 X1 _: I - }
$ |( n% O6 j6 [$ j7 \3 L. ] - void mainAction() {) Y( K- V: V5 b' j d
- // 发送请求
& ]! w9 H% p- C3 | - doGet("http://google.cn");
5 @% {2 |: t5 q# r# T4 u - }4 c/ D$ c9 j( V) Z& m2 T, e# f
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