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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)
3 g' |) m9 N" u4 x, W- _ Y& l- #include <ESP8266HTTPClient.h>2 B. ?7 Q* O3 U6 d) u A, R9 Y
- #include <ESP8266WiFi.h>
/ t& | |/ M. z2 b1 [" l - #include <ESP8266WiFiMulti.h>
& ^2 m) r) |. n0 u - #include <ESP8266WebServer.h>4 b8 x, a, E, k# F) Y7 Z1 x' K
- #include <arduino.h>! r$ r! D, L" X, F
- ESP8266WiFiMulti WiFiMulti;" V& [9 n2 |% C7 ]) X
- ESP8266WebServer server(80);
4 \6 T8 P3 S! A( u - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
0 u: c& _- k( y% H9 j* H4 i) m - ADC_MODE(ADC_VCC); e3 o" Z+ }) H8 y
- void setup() {
4 _# A$ D& t/ ^6 f: k: A s8 \ - Serial.begin(115200);
4 n( l0 d9 h& U# I - Serial.print("\r\n\n");
: }. L8 M, l) i/ I! _1 L - pinMode(2,OUTPUT);
3 R0 s5 G0 }5 Q* S4 `) e - // WIFI$ ]+ H% x# y: B" ]' q# D g
- WiFi.mode(WIFI_STA);
, d( \3 B) l& U6 B. I7 G ^ - WiFi.hostname("Sparkle");# f1 C4 H4 \& k, I" f2 @
- WiFiMulti.addAP("wifi ssid", "wifi password");
! C8 ~1 N @8 o+ N+ n C3 z6 k - int tryNum = 15;
, A: r1 @( {/ W' z; L5 q2 E3 J - Serial.print("Connect WiFi");* s1 L/ T; Y* `# @7 }5 W& S! F
- while (WiFiMulti.run() != WL_CONNECTED) {& o; i3 S p$ v, y) [
- digitalWrite(2,0);
; T/ N3 U3 X8 |5 @. y+ j! e - delay(200);
0 |5 D" h. r. B3 ~1 Z! e - digitalWrite(2,1);
Q0 q: L4 G4 c& X& ?, N8 Z$ k - delay(300);
2 B! w6 a8 J. z+ ^" d3 L - Serial.print(".");" `6 h$ H) y. {: c% ]) ^
- tryNum--;
" x$ h+ v; p4 J9 h9 [ g, d+ a - if (tryNum == 0) {3 y" g8 Y0 w E7 K8 x3 B- \
- // 1min
, u9 G- w' n& x3 G8 k - // ESP.deepSleep(60e6);: N( J' T/ _. V- J
- ESP.deepSleep(0);
9 B+ I- O4 D- A, u) b0 r - }; ~5 E' o- ?) `' K# [
- }
7 z' P1 w+ j+ Z) S. l - Serial.print("\r\n");0 k# h+ G- V" X9 r$ C- c
- digitalWrite(2,1);8 T: z# _% V6 h3 T7 w( {0 L
- Serial.print("IP address : ");/ h! I5 @2 P* h& i5 X9 J
- Serial.println(WiFi.localIP());
5 {" d- A3 W- r" ~ - server.on("/", HTTP_GET, [](){
) A/ T& l( L' n" F4 t u+ h8 p - server.sendHeader("Connection", "close");8 ~3 o S1 L9 w" }6 @
- server.send(200, "text/html", serverIndex);
; p# N+ w4 M0 n+ Y - });
: N; o7 ^- i5 t* x - server.on("/update", HTTP_POST, [](){3 {) n" U, I! e6 L8 P
- server.sendHeader("Connection", "close");
! }2 |. w8 v5 `0 l4 C/ }4 q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");1 o: t7 y6 W6 y) j, R9 f. J! N: t7 ]
- ESP.restart();
3 o; d* I9 `& U. H, [' P4 M - },[](){4 f6 }: }5 M6 Q( D
- HTTPUpload& upload = server.upload();
9 S) F7 N# z7 o/ r1 {: D7 X - if(upload.status == UPLOAD_FILE_START){- [ S7 D! B1 w$ V: U9 a7 {! ?
- Serial.setDebugOutput(true);
C" s' c& i/ f& u% w - Serial.printf("Update: %s\n", upload.filename.c_str());
) u" r: b3 K2 I5 Y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- }7 p, H0 |8 R( i# k - if(!Update.begin(maxSketchSpace)){2 O% p5 i: y% B$ i5 a+ `1 P
- Update.printError(Serial);
, n" c7 { I; Y+ { - }
; i% R, c+ x# p9 ^ - } else if(upload.status == UPLOAD_FILE_WRITE){) Y( o* J- W) l% m7 o0 w- v* T0 p
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 {, t# Z0 C* R j0 P! V2 n3 B
- Update.printError(Serial);
6 j" n* Q! P: U V h h' I8 U - }' h7 T, y+ h4 `) ^6 H! |& B
- } else if(upload.status == UPLOAD_FILE_END){3 j8 Q5 G6 B, K, N/ D' p7 a
- if(Update.end(true)){! G+ L9 K( J$ ]+ T9 K
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* [' J/ G4 J; B9 W$ z3 k
- } else {6 d" t/ P3 B; i- q4 h. F( I2 e i% Q
- Update.printError(Serial);
- h/ g9 @% A' p - }
2 Y6 j1 f' c$ D; g* K, r - Serial.setDebugOutput(false);
7 W P: A6 j- p. [" D- n - }
7 X. }$ N v' C - yield();- v* t0 D7 O# f9 |5 j! Z4 D$ m Y
- }); X4 Y, |8 S% l
-
7 C% {5 U |, q: ~8 d0 C4 e - digitalWrite(2,0);
3 D$ T3 _* z5 i) c3 ]/ l$ u, i; C7 I - mainAction();/ G, R8 \3 W& i% [
- if (digitalRead(0)){
! {3 h) `& l1 s$ ]$ M - ESP.deepSleep(0);
S2 y, l1 t7 x* K) c - } else {9 n0 A5 | K9 O) V- v5 x* A) @0 g
- server.begin();
) o# e9 a* t6 l% _ - }
: l L- G# {5 L - }. L8 J" I- W0 ]1 T: Z
- void loop() {
+ ?5 q9 n* `% c5 ? v+ G% _6 a - server.handleClient();1 t4 G# q# }8 ~" U* @' E
- delay(1);
+ V+ n0 r& s; j M( h1 o7 S - }+ [" T+ ~' W* ]
- String doGet(String url){# C' ?: \1 g- n
- if ((WiFiMulti.run() == WL_CONNECTED)) {# s0 ` X' Q0 K. V
- HTTPClient http;9 Z' K5 l9 T. W0 M& ]1 g
- Serial.println("[HTTP] begin...");
3 g* f3 L! y9 z - if (url.startsWith("https")) {! E+ {4 c8 g8 x( z8 z& ^* p
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 s5 b7 _! C3 K7 o6 _
- } else {: l& F3 G* f- A
- http.begin(url);
& W2 A8 }$ {; e' i - }3 U% `5 X$ I% y2 i5 l! |% m9 h0 j, E
- Serial.println("[HTTP] GET...");- R% F# e7 g. O
- int httpCode = http.GET();
" Y# Z3 l$ u% S# W2 b4 n4 ? - if (httpCode > 0) {, ~' b4 j. n) A7 t
- Serial.printf("[HTTP] code: %d\n", httpCode);
: x6 k6 ?4 e+ l) E - if (httpCode == HTTP_CODE_OK) {3 C: w& _0 b N; ]& u3 e }4 K
- String payload = http.getString();
( n% v$ e# M" t( o; [6 H% \ - Serial.println(payload);
% {( k3 W0 n1 E, u+ ~ - Serial.print("\r\n");
6 a. L2 N- c- r - return payload;0 a7 Z# V8 Y1 }9 e. ^
- }
D* l1 a& {7 k: }# g5 t2 ~: Z5 S - } else {
+ T; y. l& \# {, l8 c - Serial.printf("[HTTP] GET... failed, error: %s\n",; z, p3 C' e! U8 ^/ w
- http.errorToString(httpCode).c_str());7 U9 [% Q; U5 U9 H* W4 P
- }, Z3 l) U: N( j ~7 c
- http.end();
5 R7 T7 l' u4 } O) E5 \ - return "";
9 O3 U: G4 Z; j( t% A2 Z+ ^ - }
9 p) X! o' l' ? - }: X/ O8 h$ H" G9 T) k5 W, `6 n
- void mainAction() {
# K* D$ t- e4 p( H/ x - // 发送请求
6 d6 I7 O. w: O8 r0 p' r3 F! B K - doGet("http://google.cn");
' l5 K7 z% _# ?+ p% E8 k6 j - }
/ u( H& H- R2 z& c8 H
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