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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)
+ `5 @& n. P6 a- Z- d$ K+ B- #include <ESP8266HTTPClient.h>
5 e4 n7 L- ~5 E; ? - #include <ESP8266WiFi.h>& U$ e3 ?% i/ f
- #include <ESP8266WiFiMulti.h>
. U* w- c8 f4 e& o - #include <ESP8266WebServer.h>6 m8 [% M7 a0 I! p- ], |
- #include <arduino.h>1 g$ S: B5 S2 k# T* h7 M) w+ m) B; E
- ESP8266WiFiMulti WiFiMulti;! O# e( h u* w: K
- ESP8266WebServer server(80);7 I5 X; x6 u7 y8 C( { \
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) p' v+ b% s# R - ADC_MODE(ADC_VCC);0 b1 d4 }3 v3 e7 R, J" i0 [# [
- void setup() {5 `; F: H" {. u3 v: p8 ]3 _, \$ E) T \
- Serial.begin(115200);
# T1 V( Z3 R0 g* P/ s1 s - Serial.print("\r\n\n");
8 J9 ^3 Y' E" b, w0 q - pinMode(2,OUTPUT);+ r; [: i s$ T# u9 w0 @' ^6 w
- // WIFI" ]3 G9 |2 Q0 l/ m; ?8 n( R. b
- WiFi.mode(WIFI_STA);! E* U& q1 ~9 P7 R; I! y/ L4 v
- WiFi.hostname("Sparkle");, f& R$ c1 H3 n0 D
- WiFiMulti.addAP("wifi ssid", "wifi password");0 `0 b" J" |" Y, g' G
- int tryNum = 15;
9 X+ m1 Z! a$ |) f0 ~ R! c% J2 @ - Serial.print("Connect WiFi");
2 I5 d4 } g2 i. R& C; `$ u - while (WiFiMulti.run() != WL_CONNECTED) {
3 [% T, I ? {' y" X$ R+ \& h) K - digitalWrite(2,0);
" u2 C! ]; m- X$ c% s9 t - delay(200);
% I, f1 s2 ~* z( w& B4 q) m. J - digitalWrite(2,1);- |0 C$ e7 Q3 U$ a1 J) o
- delay(300);
4 Z( g5 u4 _$ ]* a - Serial.print(".");, ~7 g8 K. s2 C' T4 m8 F4 U
- tryNum--;6 s0 {& X& _% _, I v9 U& B
- if (tryNum == 0) {+ J/ ^& w1 t( J# d
- // 1min. {7 v! m* w+ ?; ~3 z* d& N8 F
- // ESP.deepSleep(60e6);
8 V4 D2 G1 X" s% V8 y. B - ESP.deepSleep(0);
6 r7 j; S B( a2 U3 ? - } x" t5 i& t* P- @. _1 `
- }9 y8 s# |* ]8 U6 J- h4 |% D
- Serial.print("\r\n");% l( N `. ~. I8 D7 e. x
- digitalWrite(2,1);
2 t5 d; C+ U$ i - Serial.print("IP address : ");* e9 O8 `9 E: V1 b
- Serial.println(WiFi.localIP());
# ^) q. ]) ?( X0 O4 Q0 I- t( K v' O - server.on("/", HTTP_GET, [](){) a6 L1 M- l. D" f% ?& _" Y
- server.sendHeader("Connection", "close");; A" s, M7 ^' t5 S
- server.send(200, "text/html", serverIndex);
) k+ i7 W" x- q: M9 k - });: ~3 a8 l* w1 l) c* K% s% [" E9 Z# A
- server.on("/update", HTTP_POST, [](){
8 T: [- |6 t: o9 Z: Z - server.sendHeader("Connection", "close");
9 x: S6 l* p, [ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");6 L7 o) l& w0 A( f1 y. F- q3 b
- ESP.restart();
, O+ V) d3 }, h6 f. q - },[](){! w& C! j6 Q+ n( o0 J
- HTTPUpload& upload = server.upload();
$ x/ i$ r- g- B# o9 s: H - if(upload.status == UPLOAD_FILE_START){/ U5 x9 Y' @0 v3 A8 D) Q5 e
- Serial.setDebugOutput(true);* J \# v6 d) M! t# _1 u/ t" i
- Serial.printf("Update: %s\n", upload.filename.c_str());0 V$ [3 ]. z$ S. E
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' p& i0 r( u% n
- if(!Update.begin(maxSketchSpace)){% J% w1 w$ _+ b6 B, Y
- Update.printError(Serial);
# t$ l) n; A0 r) a - }
( y7 z8 _- S" k4 W - } else if(upload.status == UPLOAD_FILE_WRITE){
7 S( x6 A* s2 J0 A4 J - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){6 S: B( `& g9 C
- Update.printError(Serial);
0 @( [% ~: i0 Y3 ^ - }
7 s% K1 o+ b1 n$ l$ v - } else if(upload.status == UPLOAD_FILE_END){6 @8 J; x8 I, T& n( H
- if(Update.end(true)){. C' x; H8 ?4 `8 F4 s5 D
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ F4 v5 j' I. Q4 M - } else {, u9 e) i& `3 }( k: H
- Update.printError(Serial);
1 Y' h0 g: A, W1 a- y, [ - }
$ w o1 B: C( Q# S - Serial.setDebugOutput(false);
c# }5 @7 z# q0 x# m) n) v - }, w D2 b( f7 n8 T3 y
- yield();/ q! L) a9 n/ ^6 s+ b0 Q$ |
- });3 i0 s' d" n" |0 z$ ], z f9 |
-
* K# f# k( ~! ] - digitalWrite(2,0);
/ J: L& K2 Q* B8 i - mainAction();/ C8 |6 v$ v$ U4 k+ V
- if (digitalRead(0)){4 y8 e; J) ~" [
- ESP.deepSleep(0);5 X* g5 r W# L& _: R
- } else {9 j% u' x8 D# l7 A6 G) k
- server.begin();9 t; C1 p+ Z0 |! X! p
- }. @- x7 d% t% J
- }
( W0 ?0 i) T% x - void loop() {# [6 m0 V8 y( F. q7 |5 n
- server.handleClient();
' B2 `1 g3 z% N, i2 b - delay(1); u9 p( `8 }3 z S1 G1 ?
- }
0 g0 m O* w% d$ @- O - String doGet(String url){
/ c" p ~/ ?- `6 z2 o - if ((WiFiMulti.run() == WL_CONNECTED)) {$ Z6 N' I+ T5 k' z! q; A& R
- HTTPClient http;
" \0 s. D5 w7 U) n& i) f - Serial.println("[HTTP] begin...");
/ r: ^9 d6 y- J& j' Z V. D3 q! @! Y - if (url.startsWith("https")) {
3 ]1 B% H+ F. x9 L- _ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: O5 Y& Z$ s! K% G A
- } else {3 [, h7 m* K: u# o: Q
- http.begin(url);/ ]9 e7 a+ u) z7 x
- }
$ I K# u8 y6 x$ }+ I - Serial.println("[HTTP] GET...");
1 R" |# M: Q) @& h! A& K - int httpCode = http.GET();* _4 D. x. \1 Q5 b
- if (httpCode > 0) {
* W, G4 P# d0 B$ t" Y2 Q: h - Serial.printf("[HTTP] code: %d\n", httpCode);! b2 \1 y6 w' d7 |
- if (httpCode == HTTP_CODE_OK) {
$ `! Q! U0 P: C3 L+ [ - String payload = http.getString();9 E% f4 d5 ?! M' ?- r, d& Z2 j* V# N3 O! P
- Serial.println(payload);! A, w- q; D9 \
- Serial.print("\r\n");, n4 m$ j1 Y( W. `5 A
- return payload;# {5 V5 a3 U: J5 M/ x: g
- }' M5 J9 U7 X7 D$ J0 `. p
- } else {
4 n$ ~% C. |( ]. f. Z* n- J6 S2 q - Serial.printf("[HTTP] GET... failed, error: %s\n"," A: B8 B( L8 a! H! f6 d8 e" U
- http.errorToString(httpCode).c_str());$ V; M/ G6 n4 B" y
- }% Z% y( v: a& f. [
- http.end();
! K1 D. s* h5 d. R% O3 q - return "";
! F9 I, @& Z. R3 O) L# U - }
9 ]! `5 j/ Q+ r% _& X+ B) r - }4 R) H E5 k; ~; o- J9 V- i2 }
- void mainAction() {0 v" B2 K" V. I
- // 发送请求
& Q) ^# O; F: _8 @% L - doGet("http://google.cn");+ l2 |" F! Y, d% M6 W
- }9 }) h- @+ M, q+ {4 t4 q
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