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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)& m4 f/ N6 \; ^
- #include <ESP8266HTTPClient.h>
1 |+ G3 r4 j! B, x+ g q! B - #include <ESP8266WiFi.h>
; Y7 O3 Z1 v9 v - #include <ESP8266WiFiMulti.h>
" |0 A+ ]' X+ [- h( d* E - #include <ESP8266WebServer.h>
# `* x+ s: ^' ^/ |0 |1 C - #include <arduino.h>, B& Q2 v) S4 Z# Q
- ESP8266WiFiMulti WiFiMulti;
0 Z7 o' y' g4 n# P6 J" s& Q - ESP8266WebServer server(80);
% [' v5 ?+ G& n; [) E - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
" I! t' u4 K8 R3 O8 p - ADC_MODE(ADC_VCC);. M( n) [1 ^' C; ?8 Q4 E5 E
- void setup() {0 b( N$ }3 F& T; R& ^' a
- Serial.begin(115200);
2 V' ^: u' ?+ |) Q X - Serial.print("\r\n\n");
! y! k6 U4 x' Q) [+ m# o0 X% e - pinMode(2,OUTPUT);- `+ S( P( n* J% M1 a
- // WIFI
1 W6 k: \9 s1 F$ D0 } - WiFi.mode(WIFI_STA);: H) F* b! ~* S8 d% q l5 k( w$ C
- WiFi.hostname("Sparkle");4 g. D$ o1 H R
- WiFiMulti.addAP("wifi ssid", "wifi password");
6 U- k) i6 F# j - int tryNum = 15;1 w2 d1 `; `3 L1 {3 Y5 W
- Serial.print("Connect WiFi");1 o9 Z4 D$ f8 H0 N6 x) d
- while (WiFiMulti.run() != WL_CONNECTED) {5 K2 `/ s7 G7 U
- digitalWrite(2,0);
, ^9 R" Y# S {& Z& O2 S - delay(200); P, P" r% c8 h! }
- digitalWrite(2,1);
% i4 N! j% ~1 I" C% Z1 B& b - delay(300);1 r: O% a s1 }/ p
- Serial.print(".");
: V' T& T1 k# Q* l! h! k* p - tryNum--;
9 D& o( J! x: s8 P1 Z$ g - if (tryNum == 0) {: u& o* J4 x' H; z
- // 1min
. d, ?3 T I. n' h6 o - // ESP.deepSleep(60e6);
8 p0 e! ]: f# z, i - ESP.deepSleep(0);
H0 t* M9 N' u2 i0 \9 \2 ]0 J - }
- W8 V9 ^% h$ @7 a. F - }
7 @! J6 r- c# R0 {' Y. b - Serial.print("\r\n");
' q% T3 K4 k( E. M- d2 I- ]5 ` - digitalWrite(2,1);
+ r3 k# ]& `0 y( i+ E% w; Z - Serial.print("IP address : ");% N* \3 q% N1 m* ^) R
- Serial.println(WiFi.localIP());
9 @9 {. n4 o# k" V - server.on("/", HTTP_GET, [](){
' @3 |3 R2 K5 }5 C/ R" d0 \+ w - server.sendHeader("Connection", "close");
& _$ X1 a% g/ A$ `6 q - server.send(200, "text/html", serverIndex); p8 j( A. M% u+ ^4 x. A% c5 q
- });
( A3 x. ], h- O1 M) B, M - server.on("/update", HTTP_POST, [](){
; W% p( y( D, w( S8 z - server.sendHeader("Connection", "close");
9 K4 \; Z0 S) @+ s+ E9 X - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");/ d6 c6 u0 K4 o9 {- T
- ESP.restart();1 g9 O3 _- M- i g0 G7 I. d6 {$ J/ W
- },[](){
k6 v1 K! W( {8 G - HTTPUpload& upload = server.upload();
- o0 T9 d+ {: U u" t1 E @# `) c - if(upload.status == UPLOAD_FILE_START){
& N9 X" P+ n5 e7 P7 w1 W! S- A - Serial.setDebugOutput(true);
h; \7 Y- v. } - Serial.printf("Update: %s\n", upload.filename.c_str());
. J7 O; |, o4 Y3 x/ E$ r! m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;5 o" O. O* m+ A; D
- if(!Update.begin(maxSketchSpace)){
# Q7 X0 }( O5 Z7 A1 e i; F) E, g: _0 z - Update.printError(Serial);
. P; N0 d0 s0 y; T# i - }
, T; d8 x. m; v4 N" \7 e - } else if(upload.status == UPLOAD_FILE_WRITE){
3 Q: U) o7 }; z+ P: k - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# d. J/ s5 x* A9 d: b - Update.printError(Serial);6 w. g3 m" u C9 W3 _3 d
- }. x; j& ]1 m. Y: Y3 v
- } else if(upload.status == UPLOAD_FILE_END){! \$ s1 }8 {. t; d0 r9 m" K6 n6 Y3 o
- if(Update.end(true)){ a% `' ~, C& b" i1 _! ~
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);% r! g' j+ u, Q$ E( }
- } else {7 J5 y4 x' z8 c6 ?, ~* F9 b; X: v
- Update.printError(Serial);, j! ?5 O4 |% |9 @9 h$ V5 G3 B
- }
d. L0 p( R5 Z8 q g; p - Serial.setDebugOutput(false);
- ~% o7 I6 Z% s& ` - }
6 o% \" Q. h/ y$ p7 z2 S, l - yield();
1 X, m& A) `) F7 t6 j# Q# P - });1 y* m5 } V' w; d4 A% v
- 8 J+ y) K8 i6 I$ G; J: r
- digitalWrite(2,0);, u; {% W& `# x
- mainAction();! v- k9 t+ g. D4 L8 O/ T# A
- if (digitalRead(0)){4 `2 a' L v0 t& n/ e
- ESP.deepSleep(0);
) `0 X% `" W. V0 U7 U7 a - } else {5 r; n5 c: Q9 l
- server.begin();
; @5 }4 v8 w& t6 P$ |% E - }5 m: o/ y5 ?1 x% S8 k& _
- }5 E, R4 E. z2 ]9 k
- void loop() {
0 D: ]& y/ Q, G$ N# l: z+ ^ - server.handleClient();) j7 I8 U. |: h
- delay(1);
' c! q$ }7 _! | - }7 J& X1 n8 Y$ g: }9 i8 K3 e
- String doGet(String url){
; T) N/ M; b$ k - if ((WiFiMulti.run() == WL_CONNECTED)) {
) _: U: v9 y0 ^8 S6 m O - HTTPClient http;
2 _; |0 I% i1 t# M/ l) c - Serial.println("[HTTP] begin...");& d$ `* ^$ ]6 b7 m9 z4 q6 o' C2 c
- if (url.startsWith("https")) {" b: G; z# }/ c2 \
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ r& _/ i* V' R! d - } else { O5 {. E7 \/ V
- http.begin(url);% x4 ^1 G @' K
- }4 W8 C$ o! W8 O9 z# ~
- Serial.println("[HTTP] GET...");
$ a' q d f% \- K - int httpCode = http.GET();
0 P; O, `" I" e( D - if (httpCode > 0) {: L4 d% L1 d! h4 A5 @! o. \9 u( g1 |
- Serial.printf("[HTTP] code: %d\n", httpCode);
- I) @8 M4 t; l# W - if (httpCode == HTTP_CODE_OK) {" U4 w* L. @* [1 L5 L0 {/ h/ x
- String payload = http.getString();
( B8 K( i( z( g9 l8 X+ o! G% ~" b - Serial.println(payload);2 \+ ~- p9 ?& a
- Serial.print("\r\n");
) x% U3 |7 p1 a - return payload;
1 Q* w2 n# H; s0 z7 a% V0 H - }
. _) u4 a3 g' t - } else {
1 p& i9 ]4 ?6 N' Q. D0 Q H - Serial.printf("[HTTP] GET... failed, error: %s\n",
: B* @/ C5 b8 s; c" X. J - http.errorToString(httpCode).c_str());
9 d" \% Y1 d4 a$ L" | - } a! _5 |9 I6 r; H5 ]- [
- http.end();
4 r/ z6 R' |* r( Z& T- j7 { - return "";* g. L7 A B" ]" u. B6 I
- }
0 \3 Y' @- S5 r; ]- @) Y - }! Y) R& ]* ~+ i( ]7 G6 F# c! l
- void mainAction() {( Y( ^) O3 ~% n5 s4 X% K- P
- // 发送请求. J$ e) v: y0 t8 S& u
- doGet("http://google.cn");
~9 w" m/ j# m5 x' C# H$ y - }, |+ ~. P T8 V& T1 M: f& O
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