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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)" M1 j/ A0 T. o* g6 ?! D
- #include <ESP8266HTTPClient.h>
1 o+ g8 L! q0 k - #include <ESP8266WiFi.h>
9 D m9 u& S0 [7 W& b2 \8 z8 o - #include <ESP8266WiFiMulti.h>
( N5 ]) Y. [9 [ - #include <ESP8266WebServer.h>. r9 T7 X- |3 C/ w- M% B( z$ s2 X/ K7 O
- #include <arduino.h>. H* S* P; ]9 T. m9 C: p% ~
- ESP8266WiFiMulti WiFiMulti;4 ~8 V0 ]9 c# i1 V4 Q
- ESP8266WebServer server(80);
* G! P: a8 v* S - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; b# T7 t7 p s% E
- ADC_MODE(ADC_VCC);; [: l, M( A" M+ g
- void setup() {# Z# @+ E1 _* n- w
- Serial.begin(115200); y1 ^' V3 V4 r
- Serial.print("\r\n\n");; O* T$ B3 X# L! W9 k+ O
- pinMode(2,OUTPUT);
( V9 c# B F' e/ }/ C; S9 T7 B0 [ - // WIFI- W+ v2 E4 p: k5 F
- WiFi.mode(WIFI_STA);
9 ^/ N( B* R9 R6 T - WiFi.hostname("Sparkle");
7 r( j z8 c* Z - WiFiMulti.addAP("wifi ssid", "wifi password");
# i0 o/ q4 @ A& Z - int tryNum = 15;/ {- V5 U( N( G# j5 r+ _) K
- Serial.print("Connect WiFi");
8 q& i% U. Q$ r, J9 T9 O" b, a8 E. v - while (WiFiMulti.run() != WL_CONNECTED) {2 w+ [4 h% n* k; b
- digitalWrite(2,0);
* z7 {# z% [0 F* L8 b9 z3 E( l - delay(200);) W; Z. G! K" M$ ]
- digitalWrite(2,1);4 X3 M5 z1 G& Z- e3 y& T9 C
- delay(300);
$ L. L3 F7 X* ~6 o; v0 g0 F6 T' u - Serial.print(".");+ q g- o! k6 a
- tryNum--;
3 Y, G% r6 i, l3 i8 ` - if (tryNum == 0) {
! R0 s/ i% _/ r Y) ^; i- R - // 1min
* H3 F! m, z5 P2 _7 {$ @8 o. s - // ESP.deepSleep(60e6);
# z6 N( d( @) m2 i) l1 X5 w - ESP.deepSleep(0);! E% W, T1 L* \# C+ O
- }
6 }* f# i" \2 Y - }
( N, k3 _8 y' p - Serial.print("\r\n");
# D+ u3 L( L$ D$ [( t - digitalWrite(2,1);
* L: q8 M: | K% c - Serial.print("IP address : ");; n$ }9 S( V% n1 J5 x
- Serial.println(WiFi.localIP());: Y$ X0 J0 }7 r7 e' [) Y
- server.on("/", HTTP_GET, [](){% ]# O* n9 t5 e9 O: o( d
- server.sendHeader("Connection", "close");8 r: A' E. p9 e: h, e% y4 |4 c
- server.send(200, "text/html", serverIndex);+ G* F9 q+ Q# e9 S( G1 X2 `
- });
0 b2 p3 |' g/ I" g - server.on("/update", HTTP_POST, [](){2 _ R2 s4 d3 K( |* [
- server.sendHeader("Connection", "close");
$ N- H8 ], R+ Z0 z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
s6 m* g8 U8 B/ B7 Z6 ] - ESP.restart();* H4 G, v6 ]5 B
- },[](){) s* C2 C' [9 T$ H/ E* D: @- E* \
- HTTPUpload& upload = server.upload();2 Z5 u3 R5 J" |; ^0 V: K
- if(upload.status == UPLOAD_FILE_START){9 }, r1 U0 _- T0 O
- Serial.setDebugOutput(true);
* G9 H! E+ e, `9 T/ e% x, ]5 B; E - Serial.printf("Update: %s\n", upload.filename.c_str());. J* t5 X* s& }- Y' h7 r( h
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;. ^4 M2 Z% U% J8 R; }6 ]5 \
- if(!Update.begin(maxSketchSpace)){
8 o9 X8 v3 n g8 ?9 k& k% [' m - Update.printError(Serial);
; q, u$ b" M1 U3 @ - }
' V; H/ ~# A9 a# B. A' S" s - } else if(upload.status == UPLOAD_FILE_WRITE){7 L1 ?! X( F' ^
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% r- x* Z4 o$ s6 \6 G5 @ - Update.printError(Serial);; Y& d; y, t5 W# i. y; @
- }
. c* \: I' i: v: z! h3 \3 m) R4 Z - } else if(upload.status == UPLOAD_FILE_END){" y3 ^& h% s' {+ q0 X7 ~* Y5 a, |
- if(Update.end(true)){
! }" h8 e5 Z" |6 l - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);0 |( U1 C* m5 C( }
- } else {: u5 P8 h0 m& M
- Update.printError(Serial);* x/ H" e& R* u7 ?; G
- }
0 H7 Y3 @- k) v3 {, R% P0 s# e" w - Serial.setDebugOutput(false);
$ {2 B! m: N" C3 V6 { - }
6 U4 D2 w4 X1 Y2 E# Z# l - yield();% d1 ?( i- X9 g$ B; _6 w
- });
; R/ B1 R5 v( `* | -
3 c! E$ W. Q+ q1 f8 e0 Q - digitalWrite(2,0);& t* H) F6 ~6 s, ]4 ~ d% T% x
- mainAction();" z9 o: A7 q& m6 n/ D4 t
- if (digitalRead(0)){- l; v( r7 V) j* @9 |1 o. W
- ESP.deepSleep(0);
3 D9 `( H2 q& \6 p9 t - } else {8 ~3 N5 _1 s r& a @+ y
- server.begin();' U; c! Q6 I" |: F# m
- }! G1 y. z# {* p8 K& H! [0 w! V
- }
- _, g A- b9 x - void loop() {& l; v7 M) l! M: u
- server.handleClient();: c L& }5 L# n0 g
- delay(1);3 T2 Q( F/ D- _' V
- }
) x; J, x' i3 F - String doGet(String url){) V4 I) W! E% y. L. m
- if ((WiFiMulti.run() == WL_CONNECTED)) {% K4 W. _7 b! U0 B& d9 d
- HTTPClient http;
9 {1 s( U- Z* J, D - Serial.println("[HTTP] begin...");; ]% U7 a0 W5 a5 S
- if (url.startsWith("https")) {( L) Y' a' c% y( b4 w
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");. y1 V X* ~+ o+ r
- } else {0 G$ n7 w/ V3 B7 K7 ?! e( f
- http.begin(url);$ i$ ^4 A8 M! B; |
- }
1 [- X* W7 E, E - Serial.println("[HTTP] GET...");
& }0 f U8 \" Q! }# w7 O- L - int httpCode = http.GET();% C" \0 |7 a" D D; E) e. _
- if (httpCode > 0) {
! X6 Z" i5 p% ?+ U% F: P0 ~. L - Serial.printf("[HTTP] code: %d\n", httpCode);) i3 B; H. i1 x& E- F0 W$ X
- if (httpCode == HTTP_CODE_OK) {
: b! _6 y3 M* u* j5 a) I& f - String payload = http.getString();
. S; J- F. m' g* x3 E9 H8 C7 D - Serial.println(payload);' T0 Y) D& P6 W6 M
- Serial.print("\r\n");6 R. z% O) F0 l8 F
- return payload;2 w8 s( ~/ U6 m+ t( l: N
- }
: O( X0 I$ h$ b7 i2 z* d - } else {
: M5 X* V" g: I' s9 F! M2 | - Serial.printf("[HTTP] GET... failed, error: %s\n",- d- z) R- b# K4 m! @
- http.errorToString(httpCode).c_str());! g/ L% A! c I. |* y0 {0 V
- }
' Z: w7 E; F- ^- e - http.end();
8 e, g7 I6 F2 d% X - return "";
/ @; g8 u. D0 D6 U- r% B K - }) H+ J! T2 |; {$ y; K9 j1 Z, F
- }
& q: m4 V! o* r2 L5 c" f8 A - void mainAction() {
! M3 N: J: c+ t+ Q - // 发送请求
% F, `& }8 x' J ~% F5 N - doGet("http://google.cn");
2 P- n" e* s5 t7 }% c0 [( b - }7 v/ ?0 X4 n9 \% f1 L
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