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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)( a; L% R1 s) m# b! S. V
- #include <ESP8266HTTPClient.h>
, c1 ^1 ^2 N: A s' N - #include <ESP8266WiFi.h>
) G1 A W; O- F) o7 ^ - #include <ESP8266WiFiMulti.h>
- _, F- C* S5 c6 f9 D# ~. O - #include <ESP8266WebServer.h>
$ ?6 `9 w9 M1 `9 W$ Q. X - #include <arduino.h>
/ D" ]9 l9 l+ ^, {( n; e% f. B - ESP8266WiFiMulti WiFiMulti;7 K% g& q. N1 H4 H8 ?6 b" b# e
- ESP8266WebServer server(80);
5 l7 y# M; l: }4 i - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 ?+ R/ J; d( k) J+ x+ N
- ADC_MODE(ADC_VCC);# W: q# L* j* F0 {+ ^
- void setup() {% @. a/ b3 n( X% }6 K
- Serial.begin(115200);6 l; _1 c+ K: ~/ |( y+ t
- Serial.print("\r\n\n");
; g+ v6 l. g7 q( k. _& C - pinMode(2,OUTPUT);
' U# W8 ]& E" `4 g - // WIFI7 B3 q8 M& Z+ g4 t' j' w
- WiFi.mode(WIFI_STA);
. I, p% L" o8 Y( ~5 F; |! H - WiFi.hostname("Sparkle");
( g* P6 C9 c0 l' Q: L9 i4 S' ~ - WiFiMulti.addAP("wifi ssid", "wifi password");/ A3 V2 f0 K& G3 ~9 W8 q5 p
- int tryNum = 15;" s. J. f* @3 M& a1 X
- Serial.print("Connect WiFi");
/ \4 x! J8 R7 f O9 M - while (WiFiMulti.run() != WL_CONNECTED) {
7 Z0 s/ ~) t" @& U# l3 p - digitalWrite(2,0);: \$ \7 u3 w' X W8 ^7 q3 i
- delay(200); ]6 \6 E( x/ V2 J' }2 f p
- digitalWrite(2,1);7 v* O& T' s9 f( _8 u' ^5 y( r2 O
- delay(300);. C# ]7 [: I$ G
- Serial.print(".");$ N; k0 q" E X) J
- tryNum--;
4 k3 X) R9 [; |7 s" \& z6 _8 ^ - if (tryNum == 0) {
9 A" I* W( E* ~# l. I9 l0 f) L - // 1min* }- G- j" }7 w
- // ESP.deepSleep(60e6);9 G, q8 I% ~2 l! e9 |1 ~
- ESP.deepSleep(0);% v+ m4 X5 V+ C4 N% O, h+ [" l
- }7 C1 N" H6 i0 x: Y/ ?" i
- }* j2 X: d; e; S' c
- Serial.print("\r\n");; k7 W. u7 j' K$ e7 S& X
- digitalWrite(2,1);8 m/ [. E) M G: j; M5 K
- Serial.print("IP address : "); ?0 F4 F `! t$ D
- Serial.println(WiFi.localIP());6 C1 N( b' [. ?- M/ P& h
- server.on("/", HTTP_GET, [](){
& u4 _, @6 I6 k$ M1 V - server.sendHeader("Connection", "close");/ E) d- n; B ]' m/ U) R
- server.send(200, "text/html", serverIndex);+ @& N" N" O! [1 g: Z
- });# V5 r2 r) M( Q/ `
- server.on("/update", HTTP_POST, [](){( A Y; e1 b' M7 M% m
- server.sendHeader("Connection", "close");- E4 J1 A# X7 r, J# e
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 ?2 G! Z! b* o/ R - ESP.restart();2 Y+ \5 d) }, C
- },[](){# P- z: z! z" V3 ?9 n2 K2 `$ t
- HTTPUpload& upload = server.upload();- M; {6 L( W* z: r1 n5 I6 W5 Y4 m
- if(upload.status == UPLOAD_FILE_START){4 l' L7 F& J* e; q* y5 e# }
- Serial.setDebugOutput(true);
- n4 `0 ~7 ]+ E) A! G, u& N; E( K - Serial.printf("Update: %s\n", upload.filename.c_str());- e5 ^" ]: M, |- D
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 s" u6 e4 |, v8 j6 \9 q - if(!Update.begin(maxSketchSpace)){: F1 {/ `; R2 A- r* {
- Update.printError(Serial);
( [7 l" ~. m( N2 h' t& `" y! j: D - }
2 C2 P# h4 G* x& V2 ~ - } else if(upload.status == UPLOAD_FILE_WRITE){% |/ l7 D& e7 t, Y1 {: O% l
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){, {$ Q! U U3 V. q' r5 b+ u# h
- Update.printError(Serial);) c* T% l; L5 i
- }2 s6 }. b# \- S5 V6 I E$ ~$ F
- } else if(upload.status == UPLOAD_FILE_END){( x9 J* D2 X- ?& F6 E# K# _: l N
- if(Update.end(true)){2 A9 F" f+ s* F! Q/ L7 L
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! Y) m& E3 y* z$ |. }& b
- } else {
: e$ i9 q+ j4 ?7 N0 x2 ` - Update.printError(Serial);7 z) `" e! H& ?; J5 t# v( j1 \
- }% ^+ K; f/ G$ Q1 X. C( V2 j. t
- Serial.setDebugOutput(false); p0 m7 R; @. w
- }5 B* r! ?/ V) y8 F: m
- yield();
9 R: i! q+ }# _" P" C( P5 k; W' ~ - });
: H- \% D9 T' H7 U -
# N" A4 X3 C. e/ l/ Q' f5 M ^ - digitalWrite(2,0);/ e& Y9 C% B% X, L7 j9 k) f& Y
- mainAction();
~, C/ \: Y' V8 k" | - if (digitalRead(0)){7 s7 c3 W, F- `2 z/ c# r6 P
- ESP.deepSleep(0);
2 B5 L6 k* V* r7 ]; g% H - } else {
& R3 q; R" o2 L! w1 d( r - server.begin();
/ y! Q' R r0 u' T. p - }7 `5 [% |% b& A6 M
- }
7 c* f! L: i1 v6 E- g - void loop() { ^7 @; n, W- b
- server.handleClient();" J; Z; {! v) ]. C9 Z0 e: v1 k7 ]$ N
- delay(1);
5 ]! D* v% u& p: f l3 |% f - }
I+ ~: ]; n$ J& \+ d - String doGet(String url){9 Q8 c' v& M0 Y# W# S/ C
- if ((WiFiMulti.run() == WL_CONNECTED)) {
3 G: J \! F7 \0 ?1 F - HTTPClient http;' J' W. c+ f! z' i$ p' Y
- Serial.println("[HTTP] begin...");
3 V6 S7 b5 v7 ~9 V - if (url.startsWith("https")) {
% I. l' T+ M4 ]- k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
; r" K/ E& o1 W4 C4 o$ s - } else {( i% G. q3 b9 D, P0 \( ]2 a2 j" B8 ^
- http.begin(url);) t) s; t% m3 m' M u- Q
- }
/ T: z0 \$ _% ?. K% s& ] - Serial.println("[HTTP] GET...");
. F' e z! D+ r0 l, S9 U( x - int httpCode = http.GET();
, Q7 ]+ c5 w0 r0 @( D; i3 \ - if (httpCode > 0) {
: _ |' f" `& L+ e1 w( u: l - Serial.printf("[HTTP] code: %d\n", httpCode);5 \; L+ R& N6 H& @# f' f4 X% Q! v- r+ b
- if (httpCode == HTTP_CODE_OK) {
/ B, v; s* f/ A) [. }% U - String payload = http.getString();
# o; D g& m& S+ S/ k5 ~9 @ - Serial.println(payload);
3 C3 z8 Q3 F/ z" t$ X3 P( e' N+ d6 \ - Serial.print("\r\n");
/ ?7 m( t, w9 s. M g i) E - return payload;/ s7 G' {8 A7 E
- }/ r, h& g& L8 l4 h
- } else {
6 K# N# F% ^' P* x7 V$ ~' p - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 l9 B& q4 U! D/ C - http.errorToString(httpCode).c_str());7 _: k0 N( I8 X' `4 e
- }! ^/ d4 Q, S: w
- http.end();( v, e2 I7 e5 G- ]0 s/ ?3 C
- return "";/ D$ q5 U' \9 q) a% l
- }! O: Y2 l+ } x3 o
- }7 [0 {% I8 R0 ~8 W# E
- void mainAction() {
' h: a% A5 M# L, V0 T# ~/ g' w0 f - // 发送请求
" E- i7 ?; G o/ G1 W3 ?, B - doGet("http://google.cn");
6 a3 y( G I- f! |- o( r3 t3 c) s - }! d! _4 M& T' c1 `1 W* F0 D: ^
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