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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) O7 m) ?. M5 p% J( X
- #include <ESP8266HTTPClient.h>4 R3 H" W: Z* I) H2 N. K
- #include <ESP8266WiFi.h>; D3 z6 x5 ]7 c( P" }2 C- m0 @
- #include <ESP8266WiFiMulti.h>. R% K) D8 y1 g* _5 S7 t* i2 I
- #include <ESP8266WebServer.h>
( g/ I1 q+ K# a! D: { - #include <arduino.h>7 w/ q. N. ~" F7 r% R0 `
- ESP8266WiFiMulti WiFiMulti;
$ o6 P: b( V5 i5 b; {% M - ESP8266WebServer server(80);
- r, E7 `: @6 A' n5 X - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 D! b7 _ b+ ?, B - ADC_MODE(ADC_VCC);+ V3 C( C, f) S
- void setup() {
. ^# v4 r8 w6 ]& p8 n - Serial.begin(115200);
& ^: p n' u1 `( R3 J' `# r6 G4 O - Serial.print("\r\n\n");
8 f" ]; O/ C, ^/ G5 s& ?* @4 H - pinMode(2,OUTPUT);' ~/ r* a/ x+ x$ J/ w- g
- // WIFI" s; g& i9 f3 w) g' p9 h
- WiFi.mode(WIFI_STA);9 o2 m: t$ x( ?
- WiFi.hostname("Sparkle");
# Q# Q. M. o' L- l' |5 f2 R) o - WiFiMulti.addAP("wifi ssid", "wifi password");3 }* |/ Q2 O. s7 ~
- int tryNum = 15;
' w. y' G0 m" G7 {. ~ - Serial.print("Connect WiFi");
% f* n' n# n9 v- }2 k+ Q - while (WiFiMulti.run() != WL_CONNECTED) {
: a) m( |' x0 X9 n. s - digitalWrite(2,0);
. m. V6 u h2 R) { - delay(200);, u' B8 u; E( m6 l) Y) q6 |
- digitalWrite(2,1);
c/ y& D) @9 W& f( y5 d9 o* l - delay(300);
) X, Q1 b8 ^1 n8 o+ X - Serial.print(".");
- ?, A: {" ?2 u! B4 l1 m! z - tryNum--;
. O9 p; z0 D. l8 i) a- h# b2 { - if (tryNum == 0) {
% S' @" j# V) m! | - // 1min% t+ R5 W% }# Z. O
- // ESP.deepSleep(60e6);4 d+ L1 ]$ r0 A' T1 {
- ESP.deepSleep(0);; Z. r4 Z) Y' M
- }
1 m2 f4 L* T# O+ U, M - }3 y8 i$ R% E% _3 _
- Serial.print("\r\n");4 L( y% p5 Q/ U3 n$ K% R% T% G
- digitalWrite(2,1);
' [* c, L" @+ B, V# J; k - Serial.print("IP address : ");: ` A3 E: q: C0 O. ]$ r0 ^2 v. r
- Serial.println(WiFi.localIP());
9 _( V- f# h3 b9 S9 Q$ q; B - server.on("/", HTTP_GET, [](){
# J+ w: @/ U* E - server.sendHeader("Connection", "close");
7 h6 D2 q' `8 ^! a& ~( P% | - server.send(200, "text/html", serverIndex);$ l) G7 `6 x' r$ f. {
- });9 y [1 H" x3 o- @
- server.on("/update", HTTP_POST, [](){
+ v1 H& W' b' ?6 r - server.sendHeader("Connection", "close");
/ e5 B2 S& ?: r0 O4 i) | - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");8 O4 K- A) \+ d+ u) p: M
- ESP.restart();# l) E8 R& C# D5 Z; A
- },[](){: |# z* S) y1 ?; p; q8 F
- HTTPUpload& upload = server.upload();/ Q6 W5 [4 s, L: I
- if(upload.status == UPLOAD_FILE_START){
7 x3 g) a' p9 w2 S& a9 Y/ h - Serial.setDebugOutput(true);
8 X) N+ T5 p1 k4 P6 i - Serial.printf("Update: %s\n", upload.filename.c_str());5 G7 Z# y! g6 h
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
3 J, ^% L5 c4 d) S3 `2 Y. U - if(!Update.begin(maxSketchSpace)){0 H' P+ |- N. V! F+ c5 C* X
- Update.printError(Serial);
$ G1 E/ b( C& o4 @ - }& g' y' K m/ x% ]& o
- } else if(upload.status == UPLOAD_FILE_WRITE){2 ?# ?6 v9 s! G! g
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* }5 U& R$ {; z$ L2 O
- Update.printError(Serial);
9 L6 a) I3 Z l - }+ q& M* b; I m6 @) H5 q4 `
- } else if(upload.status == UPLOAD_FILE_END){1 |* x3 ~! V0 x7 W
- if(Update.end(true)){! y+ I% d4 M4 |' X$ {
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
# X9 A: ?9 r2 M - } else {( S- O6 [) c9 n6 G5 U. F" T
- Update.printError(Serial); M8 t" P5 ^; Q: B, q U8 n6 Q: ~1 O
- }
, e% `" M* ]% T - Serial.setDebugOutput(false);
0 s0 m% c. c% j# J) s* ^0 M( x - }
- f. P, g( @- B" ] \3 l9 X4 x/ Q - yield();
: O8 F. M) |# F6 U: J# Q& L# | - });
0 d' s* P# b$ P1 y5 Q2 |/ d* q - a7 \/ S9 U3 U( S' ]
- digitalWrite(2,0);
8 p0 F% x4 O3 e - mainAction();
# m) k& ~; l9 L" y. O; N - if (digitalRead(0)){' d, ^7 Q8 J( y2 `8 J/ Q
- ESP.deepSleep(0);. N O2 V0 k+ t0 t; B- _
- } else {5 l+ e$ e3 _! ]" B$ H/ O* r$ D
- server.begin();$ R2 ~; Q/ O7 S
- }
3 R0 m8 k2 l$ X$ b9 M1 I - }
. n) H6 d! z2 A - void loop() { U: {" k/ K; g2 x6 z6 |) e( D
- server.handleClient();# N2 l9 B' D( a& X: B, e
- delay(1);# t( x7 H4 e4 S* Q! x+ p% _
- }: l1 t$ a! C+ h' ]
- String doGet(String url){
4 C8 ~' D! m+ _8 I8 x6 I - if ((WiFiMulti.run() == WL_CONNECTED)) {$ L2 l8 y: c8 K! B9 m0 D
- HTTPClient http;, h! d2 R: X* V7 ^6 ~
- Serial.println("[HTTP] begin...");0 D" z% u9 s- e$ ?
- if (url.startsWith("https")) {
. D5 l% l0 |; r: `, s - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% d# e4 U& R( ^( | [& M - } else {$ {8 ?& ~( z; n. a/ h
- http.begin(url);
5 ?5 c4 T5 Z' t3 O& z7 M0 D - }" d) Q3 J; Q4 ]5 [% u5 y; G
- Serial.println("[HTTP] GET...");
2 }3 L, W3 H- D+ S% r z2 R2 m$ C9 v - int httpCode = http.GET();0 r, W3 t. j, P: B# P
- if (httpCode > 0) {
, N' T2 f$ u- S+ j# b - Serial.printf("[HTTP] code: %d\n", httpCode);1 D; S( R! t, h( l b
- if (httpCode == HTTP_CODE_OK) {
9 n: |: e3 \+ ^ - String payload = http.getString();
! X. Q& w y7 q/ X4 S7 `% a - Serial.println(payload);
. k( Q6 V: u! l3 u c+ I7 E" w - Serial.print("\r\n");5 I# G; u' i5 ~* V# B
- return payload;! E) u" m6 y! d2 a' O
- }
' d3 C" E! D& H+ G; ]# f - } else {
7 g) Y$ I7 [% P/ N, } - Serial.printf("[HTTP] GET... failed, error: %s\n",' @/ g& ^, ^3 n. [( |9 y
- http.errorToString(httpCode).c_str());
5 J' D! Y; |" @$ S* s - }
4 u! _% v* N4 y/ _ {6 K - http.end();# M$ p \2 U* o- k
- return "";
6 D( u% c4 } _* y& ^3 [2 [ - }# J% j( {2 ]& s: Y" f, B5 c; T# @
- }
# r7 o# ~7 Y1 I& N# j7 B; ^ - void mainAction() {" ^" n" \0 a* `% {" K
- // 发送请求( E3 ^7 ^# N4 |2 |, Z# F/ M& _
- doGet("http://google.cn");
5 C1 p* q' Q- S" S - }, }% ?# \ \; s' b/ U) j. z
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