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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)
; G5 g3 R6 Q3 x& F$ e, [( y- #include <ESP8266HTTPClient.h>
; S! ]( x6 ~# ]8 N8 f5 p - #include <ESP8266WiFi.h>
/ m% F. P$ Q" M0 n - #include <ESP8266WiFiMulti.h>, L5 V6 a& p4 r3 b/ b4 G% q) _$ q
- #include <ESP8266WebServer.h>
6 t7 L; w6 p$ \, x6 q - #include <arduino.h>
5 i' @- C/ c1 F% V' v' J' l - ESP8266WiFiMulti WiFiMulti;4 s. S& {! w+ I5 c+ I& V+ k0 E- W/ B
- ESP8266WebServer server(80);# o+ t8 q5 U9 y! ?
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 H$ c) ~ S9 i" ~% ]: E - ADC_MODE(ADC_VCC);
; e" ], Z0 {9 K* g! j- h - void setup() {+ y* c1 a; e% L* b, P* K1 \
- Serial.begin(115200);9 n0 }. B6 t( c6 R$ P
- Serial.print("\r\n\n");, ?9 p0 {. a6 F& n3 a8 I
- pinMode(2,OUTPUT);
9 i, j' X y. J. `7 y; `, s- y - // WIFI+ h9 y3 M. H9 K7 Z8 ]
- WiFi.mode(WIFI_STA);
0 H, B: k2 P3 Q! E - WiFi.hostname("Sparkle");. [4 S- H# Z+ _3 P
- WiFiMulti.addAP("wifi ssid", "wifi password");
7 L$ t A! I8 Y- {( z - int tryNum = 15;
2 M, ?+ O* b' X. ] - Serial.print("Connect WiFi");" }% L k y9 P |( W# R3 e( H
- while (WiFiMulti.run() != WL_CONNECTED) {( Z/ W* z, F. G1 b8 w, Z0 O" _
- digitalWrite(2,0);
9 v0 u- F ~% p, ^( `+ g* F - delay(200);
$ t6 j0 e+ V2 a. P P - digitalWrite(2,1);
$ V% j `% \' o - delay(300);3 y2 X ^0 w7 e
- Serial.print(".");
) ~$ s) c7 j( |+ a) D - tryNum--;* S- B' D- v) Q9 l( X2 V4 _3 a8 `
- if (tryNum == 0) {9 [8 B$ n3 _8 M3 a* ^2 `% B" L4 f L
- // 1min
/ O* X% E* y5 D# n: R3 d; I - // ESP.deepSleep(60e6);
( s! V1 W3 G. `. x/ A/ V. f - ESP.deepSleep(0);
/ F3 b! C; ]( o6 N6 ?! J - }
# } _: V* y2 `) q' {6 n0 ^ - }6 [& A6 @+ z A8 B
- Serial.print("\r\n");
0 f7 q! e; X5 B- K' U( K! A - digitalWrite(2,1);5 d0 Z( e8 G" R4 o+ ^# P. i
- Serial.print("IP address : ");5 K' k8 b" A: C2 ^
- Serial.println(WiFi.localIP());/ J3 g3 n8 l( p3 C: v+ g+ N
- server.on("/", HTTP_GET, [](){6 @! M# E" j6 _# d" D9 v
- server.sendHeader("Connection", "close");7 M/ z# S x8 z# l( b2 n
- server.send(200, "text/html", serverIndex);
[0 U- N# f3 ^ @+ s3 y; f - });
+ z9 ^% p* x# n V% R, e& H- C - server.on("/update", HTTP_POST, [](){' q& s" i$ Z$ f' R& J$ S. j( j
- server.sendHeader("Connection", "close");' T2 ^/ T3 I/ r9 ]: x# Q1 G s
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 R5 X( K/ E( A \4 ^- m; Z. d; N
- ESP.restart();. o+ q+ @# b( w* A9 q
- },[](){
, I+ g, A) k& k# L - HTTPUpload& upload = server.upload();% R3 S6 o' u" c0 \
- if(upload.status == UPLOAD_FILE_START){# ^! F% D: M9 N+ Z2 G4 O' \* b
- Serial.setDebugOutput(true);
# V# q" {9 E5 g+ i+ O5 R" N - Serial.printf("Update: %s\n", upload.filename.c_str());
' D; ~; @/ b, w7 A. }: o3 f - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
( R; L, o4 N j - if(!Update.begin(maxSketchSpace)){7 K& N" U& X% b/ b7 N- g3 m
- Update.printError(Serial);
& d3 X l2 j6 V - }
* N Z! M+ W4 p& g1 \6 j - } else if(upload.status == UPLOAD_FILE_WRITE){6 ]" w! P, a& d9 E" R7 |: G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){/ \5 u3 O0 h) o' H
- Update.printError(Serial);! T6 @$ I/ U" Q1 S$ D* D
- }
8 x( b4 e; r6 O - } else if(upload.status == UPLOAD_FILE_END){
$ [6 @5 v" H: c* {# [ - if(Update.end(true)){
1 l4 w9 u W# l" P0 k+ A A( ~ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
9 b( e$ R( q' ` - } else {
1 b* V' {+ f1 ]6 Y1 q& t - Update.printError(Serial);
F/ `- }& l: @: L - }
9 ]" \ l6 ~7 N1 L1 G2 E6 @ v - Serial.setDebugOutput(false);
- l* c5 d2 b9 u" ^3 Z* M - } _! @) w* A2 q
- yield();
/ P9 C8 _; R+ A3 Q% g t7 m - });9 } L8 T9 w' F/ u: `! N; `
- N# Y- p9 k2 X; e% p6 Y P3 l
- digitalWrite(2,0);& O- X7 G0 }9 g1 W+ M( ^3 X
- mainAction();% A5 t9 O* x% f A* x$ O: a+ A
- if (digitalRead(0)){
, u; w4 c/ L7 m9 w/ b7 @" W - ESP.deepSleep(0);
! ~& e% g& U0 K/ x- N5 U: w4 X - } else {# f. U b- [" ~2 z; g1 R' g# w
- server.begin();
+ y6 `: @+ C, i, m5 m - }
+ S6 E3 J s4 p% t9 w. n6 Y% P - }
$ @0 {& ]! X5 O; O - void loop() {
f$ x( _ C; b; F! R) R) r - server.handleClient();
0 G/ q% ~8 D0 B - delay(1);
8 M3 L5 T* O5 I2 }" L: o+ {* W( J$ k& Z - }) i3 c8 L8 B( x6 |, d
- String doGet(String url){
7 z: E' n. q/ b# E% d - if ((WiFiMulti.run() == WL_CONNECTED)) {
$ V- O6 d0 Z5 Q( T - HTTPClient http;* Z, g; [$ s. Z0 _9 W" v6 A
- Serial.println("[HTTP] begin...");0 x1 Q0 y* c4 S3 n" x% @- J2 `
- if (url.startsWith("https")) {
3 L, ?5 F/ Y7 V. m" j U - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 m9 Q! w Y" ^6 p" M. v* {
- } else {
/ m! S+ w. q8 f" u& Y - http.begin(url);8 x% z W9 K2 D, `/ i
- }
9 ?' N$ ~7 |' y/ t _) R1 Y - Serial.println("[HTTP] GET...");
+ \2 O. T; M5 ^3 @4 e# ` - int httpCode = http.GET();2 @1 G9 C( r: z) ]
- if (httpCode > 0) {3 U: i$ _) b9 w5 w5 r# g) q* i
- Serial.printf("[HTTP] code: %d\n", httpCode);& e6 L9 e2 B* m2 n5 w
- if (httpCode == HTTP_CODE_OK) {- `& @; W8 i6 `
- String payload = http.getString();
; j% y! O" I3 u! P3 @( j/ J* p- K - Serial.println(payload);
& x! z- B' r5 i! K3 @ - Serial.print("\r\n");
; \* h2 ?4 ^) K/ P* A - return payload;7 y' L5 P) Z# g# J, d- c
- }) F/ t: V) y1 D: n+ Y7 c* f
- } else {0 G, R+ H0 z( F4 N# u1 Q
- Serial.printf("[HTTP] GET... failed, error: %s\n",
4 ^" V) {4 U, H3 Z" l# w# z1 g - http.errorToString(httpCode).c_str());
: I M4 v, J3 {4 ` x* J1 n1 N9 w - }. d2 \! K6 u0 o! u, }: s
- http.end();; J* p6 K( `+ m5 R; H# r" Z" Q
- return "";+ y) B* O& M+ z8 D0 ?# w
- }8 S) T" R! {+ C) t- O& \6 F
- }
3 x1 e0 |' e9 q& O. u. x o3 i2 m7 x - void mainAction() {
% |7 |3 n- B W: e! V - // 发送请求- u; u9 B6 ]/ Z+ d' ]" E
- doGet("http://google.cn");. G2 z; y& j6 h
- }
# L* N# `0 n6 ~+ E# `" I( `+ |0 H0 d
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