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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)1 a) t$ n' d) h/ T6 N5 G
- #include <ESP8266HTTPClient.h>
9 v5 l6 Y y8 |' s$ S1 d - #include <ESP8266WiFi.h>% x. A0 o0 g3 n4 b5 d0 i
- #include <ESP8266WiFiMulti.h>
/ z3 Y% p1 a( f1 z - #include <ESP8266WebServer.h># Z1 \8 T; A0 S9 v. W) p
- #include <arduino.h>( O+ i# F8 t' n0 Y/ Q$ b: Z
- ESP8266WiFiMulti WiFiMulti;) h: W0 n5 G9 t4 X0 l- G
- ESP8266WebServer server(80);. f/ J+ c4 u9 _# a, ~4 y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
- x3 `8 G+ A2 t1 o% f3 E - ADC_MODE(ADC_VCC);
& s3 j6 C: G9 m9 {. @0 a6 [9 m- b - void setup() {
5 e1 ^* l% w f% } - Serial.begin(115200);5 A- p; R9 P5 P# s! Y& T4 @( v) F
- Serial.print("\r\n\n");
0 K1 p' `; I2 I, A5 H* p# L" `3 h& q - pinMode(2,OUTPUT);8 U- c4 |' B' F; [* G: ]8 I
- // WIFI
+ }2 w/ r9 v1 J7 f$ V9 z) p& \ - WiFi.mode(WIFI_STA);0 y) e* T3 `1 ^2 c2 l( G
- WiFi.hostname("Sparkle");) c& i$ _7 E6 n( D$ }. _4 D
- WiFiMulti.addAP("wifi ssid", "wifi password");; n! E* u2 w0 a5 B3 Y
- int tryNum = 15;
; z2 D0 a0 o7 K - Serial.print("Connect WiFi");
" J% ?: P& r" I9 X - while (WiFiMulti.run() != WL_CONNECTED) {# ? ~/ E H A8 p4 d$ y1 A
- digitalWrite(2,0); E1 g1 d' E- Q8 L, d
- delay(200);
+ f: B. U# F2 X- u# W( Q - digitalWrite(2,1);$ B! |% j" v8 e8 T1 U
- delay(300);. I8 y, a' S4 {# k9 U
- Serial.print(".");* z" B0 m& w$ b! @4 Q. ]0 l' N# N. _: T
- tryNum--;% e$ \: }/ k9 B$ J% c$ o2 j5 j" o
- if (tryNum == 0) {
- b5 w8 r' s5 J5 }% z - // 1min
; J; ?! N3 J% I8 w1 F5 G - // ESP.deepSleep(60e6);
( z4 Q3 {" x8 p: g' K- n - ESP.deepSleep(0);
9 |6 _, i# s9 V: W - }4 R# x3 T+ `( Y" T* L4 W- W" R1 O
- }! y6 D% J) Z6 N+ D& o A
- Serial.print("\r\n");
, E6 Y7 {5 K/ P! C - digitalWrite(2,1);
/ D) h( q% K" B$ A - Serial.print("IP address : ");: }$ g- {/ U O( w- u; T+ b
- Serial.println(WiFi.localIP());
: v' ~/ Q* Q. \! i& U - server.on("/", HTTP_GET, [](){
: b6 C4 B# w, \6 \, l, a" n8 m - server.sendHeader("Connection", "close");
2 N& e: E( @- A D+ _% E4 l7 c - server.send(200, "text/html", serverIndex);) h7 H e2 U6 z$ I1 A
- });
- J2 X4 M; [2 B$ M$ L - server.on("/update", HTTP_POST, [](){
1 [" q! Y& m" h - server.sendHeader("Connection", "close");% u8 f- K# `. K! _* E! U; I4 ^
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 k$ q! g6 p; s4 j
- ESP.restart();1 V* i2 a; a# j- }, e2 O/ R- w& P
- },[](){% x+ C8 m, f! X! ~) z) C
- HTTPUpload& upload = server.upload();! S7 u* q* Z+ j
- if(upload.status == UPLOAD_FILE_START){
4 c3 i- H+ O8 Z1 Y! E5 _9 \ - Serial.setDebugOutput(true);% J' D+ L' T% q7 [ j/ F2 \/ M
- Serial.printf("Update: %s\n", upload.filename.c_str());
) b; p% p4 u0 z6 e! o% e+ i2 r2 i: g - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 K. s6 h+ G# N! [ - if(!Update.begin(maxSketchSpace)){% M# |: g1 J' v3 q: z2 m
- Update.printError(Serial);6 ?1 h4 Z, A% Y6 C& x8 p
- }
2 q( h7 Q# C7 ]- C5 t- { - } else if(upload.status == UPLOAD_FILE_WRITE){
; v; I# {$ k9 f, g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% b0 i+ ?' ^7 z: _- Y/ W - Update.printError(Serial);
. o3 I! z* } X. k5 Y! o - }: }1 K: I3 I6 D4 y! e
- } else if(upload.status == UPLOAD_FILE_END){
' a' ~' o- f' p' K( f+ k' i' { - if(Update.end(true)){
4 Q( l$ C+ T8 L) }) y) A5 C- i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( I% z& L& k" x - } else {
I, u! T; K( L/ [8 N - Update.printError(Serial);
$ I5 t: x- s& ]+ z - }
& u0 B% e" W: m& f7 h* R - Serial.setDebugOutput(false);
9 z2 J$ G7 k5 t/ k - }+ G. U. S8 `8 \- s, x
- yield();
2 E( U! m1 V) p% w - });2 B9 V$ q0 L3 Q9 F' z, r
-
- Y, U! r* p4 S& r0 s+ v - digitalWrite(2,0);2 o! H( t+ R$ w
- mainAction();+ r5 U, [, k* H
- if (digitalRead(0)){
1 C$ D( f3 a5 o6 x! q+ Q" g - ESP.deepSleep(0);
& Y# q. b" [. K+ p }+ q9 ?3 ?7 a - } else {
9 p- ~( s3 |1 o& H4 S6 T" i- w - server.begin();; @, E- O. t7 g: ?: m. d9 j
- }
* x3 T! w8 r" R6 X B& m1 ] - }
% Q5 H9 X1 g) z( m4 Z0 O D - void loop() {
2 M; ]2 o5 E' B4 _1 v) @( h) `+ v - server.handleClient();2 w( V3 f$ [, Q" u
- delay(1);5 M; P' y* h1 x S+ d
- }8 c1 b& u7 z% }+ ?
- String doGet(String url){2 J, L. |! t9 \- N" o* v& X
- if ((WiFiMulti.run() == WL_CONNECTED)) {
; a% S' I# P3 Y5 n) k* D: p! Q - HTTPClient http;
0 S4 o1 C* @8 e" E7 B - Serial.println("[HTTP] begin...");, l7 k2 L1 q; H
- if (url.startsWith("https")) {* L- T( M3 T' d7 [$ K
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");' [: [; b! E! f; \0 o$ n. f J
- } else {
4 u& N! m7 X8 n$ d o - http.begin(url);/ h" s" E; A4 ~4 K9 g& h& U
- }# w4 w9 _: x9 Q# c/ V g
- Serial.println("[HTTP] GET..."); W1 q$ b* N6 b: x
- int httpCode = http.GET();4 i, v7 W% ?/ w! @; u2 J4 B2 v
- if (httpCode > 0) {
0 K) W$ I$ ^+ Z7 s2 o5 D - Serial.printf("[HTTP] code: %d\n", httpCode);) e4 \" r6 n5 j; N# ^
- if (httpCode == HTTP_CODE_OK) {4 \* q# N1 Z) o( d
- String payload = http.getString();
% D; A: @! i5 t - Serial.println(payload);
2 R& t% [1 K" y- X - Serial.print("\r\n");
0 Q6 U+ \' j! \, u) J4 A: [9 S. @ - return payload;
9 o, ^' w/ L! u! U! N1 R1 \ - }" {8 j" v0 X- a; Y
- } else {0 H0 n- T# L. X( F) L
- Serial.printf("[HTTP] GET... failed, error: %s\n",
5 `: q& ^. k7 D) o9 V - http.errorToString(httpCode).c_str());0 \ j* B1 g6 w+ b
- }* L' o# J+ t7 B9 `/ ~+ l
- http.end();+ J. v4 x2 Q9 a% x$ G
- return "";
# w, d. Y. w5 _. t9 ~% i! |1 f - }, p- r6 [' _ C U# d
- }
7 j! F M# u8 j/ \- B q - void mainAction() {+ ~$ g9 ]0 U; h6 W8 a# Q5 u
- // 发送请求- Q6 d/ l1 F# j( ?. Z7 O
- doGet("http://google.cn");* G/ B$ J+ a5 i! D/ U/ U0 c
- }
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