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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)
2 u" L, I; A' v* l$ e- #include <ESP8266HTTPClient.h>
: t7 L7 A$ y" U9 J2 s2 { - #include <ESP8266WiFi.h>7 V3 Z4 T! r5 T4 O( x
- #include <ESP8266WiFiMulti.h>
$ e$ S( y8 ]/ P; l8 z; g. \: { - #include <ESP8266WebServer.h>
/ {6 W) ]! y5 W+ O5 p# t" r3 s7 Q - #include <arduino.h>
! M0 p) ?$ p. c( u& F& r - ESP8266WiFiMulti WiFiMulti;
! _! ~% e2 v/ ` a5 q - ESP8266WebServer server(80);- m' @( `& ?0 o. G# @% Y" w
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>"; w. j2 [ c' o: ^& M1 g; o0 E
- ADC_MODE(ADC_VCC);( ]' i$ a0 ]2 f7 E6 K }* R6 ]8 P( ?
- void setup() {3 b4 m u( A; X; m8 b# H
- Serial.begin(115200);( q; X- n/ J7 `( T/ b; J; ^ @6 Z, j
- Serial.print("\r\n\n");
* {+ x5 l0 G, ~3 x3 _, E - pinMode(2,OUTPUT);
6 ?/ k; k8 e2 [0 H) L% c - // WIFI6 J9 Z5 V7 y2 i5 {" p0 A% ~
- WiFi.mode(WIFI_STA);
( {" y. X% w$ d# U; @3 A - WiFi.hostname("Sparkle");
6 k# _& l' ^4 u" D6 x - WiFiMulti.addAP("wifi ssid", "wifi password");8 H) O D8 E4 y: `) b: z
- int tryNum = 15;9 p( x' |: k& H9 v3 l) l7 }% _
- Serial.print("Connect WiFi");4 m+ _6 M) U/ B/ Z* C! {2 k! J
- while (WiFiMulti.run() != WL_CONNECTED) {
4 G$ i- m7 U) `& J - digitalWrite(2,0);
/ c6 T6 H: ?/ V& i) H8 @3 | - delay(200);! _& o5 m. u) q6 P0 V; `, w; S# S
- digitalWrite(2,1);
) q3 r5 S6 [# c( k- i - delay(300);
j1 z/ m( D; n! H - Serial.print(".");
* \/ k- A; H9 w5 }8 ^ - tryNum--;4 K! a" R6 j4 ~7 b `
- if (tryNum == 0) {- ~ e# `1 d1 f) R
- // 1min
8 G2 _" i* j# C+ N( r. B; i* n - // ESP.deepSleep(60e6);
0 o. w0 z, r s q* F; { - ESP.deepSleep(0);- l) M3 Y' ^, V5 v4 t; j E
- }
4 }3 W5 n) D8 d# P r; a - }
# u! M* k1 c3 |5 i7 g4 L - Serial.print("\r\n");# O/ j! l! d' x, P C: E" v/ R. X1 T
- digitalWrite(2,1);- e8 X& P5 f2 U1 n& g
- Serial.print("IP address : ");
$ x9 p9 S; H$ X# q5 u5 ?9 Q - Serial.println(WiFi.localIP());
. e# @2 A7 K3 t3 a, g+ T+ a - server.on("/", HTTP_GET, [](){) U4 y1 d7 |' g3 b. ~
- server.sendHeader("Connection", "close");
) `0 S/ T/ ^& Y4 H - server.send(200, "text/html", serverIndex);
' z- C- \2 V! O/ @7 y6 w* G' e - });
9 Y0 |9 K+ C4 o - server.on("/update", HTTP_POST, [](){1 o( g9 Y, `3 g a3 E
- server.sendHeader("Connection", "close");
2 }1 f) Y; `( c1 A) U - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" z Y. U9 [7 {- G+ w - ESP.restart();' r9 f8 s6 _7 C+ j, a
- },[](){
* W7 @5 l3 I# y0 @' B' s' V1 S - HTTPUpload& upload = server.upload();
; T1 L% B2 c$ }+ s# O! u! ?. A- d! @ - if(upload.status == UPLOAD_FILE_START){! w/ Y7 E% z) V9 J) S! `
- Serial.setDebugOutput(true);
1 ]& _9 a4 o# a2 m6 @ - Serial.printf("Update: %s\n", upload.filename.c_str());
. O2 q- ]+ H$ C( i8 E - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
4 j" w1 d6 G* X# d2 k; U - if(!Update.begin(maxSketchSpace)){
2 g- X3 B3 u1 O. ^! z8 K: C# \' f - Update.printError(Serial);6 D$ Q( K# `: P
- }
4 ~/ }: Y+ M0 o1 V X! T* F - } else if(upload.status == UPLOAD_FILE_WRITE){
1 h$ n7 F# }7 O# u - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 D9 n, a$ }1 }0 ^$ ]4 E( i# L4 z
- Update.printError(Serial);
9 g% h1 g6 L# @' P7 h A' M - }0 M# O6 ^0 Y. o* o( Y% J2 J
- } else if(upload.status == UPLOAD_FILE_END){* d7 L8 }& A: e& ?- U
- if(Update.end(true)){* i }' F4 l3 `8 C
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% h" l- y2 L2 S, P - } else {$ M: ^8 ]2 A/ q$ q q: D; T( ]
- Update.printError(Serial);
% v; B3 Q5 Q, a& ~) t - }0 K- F. E `; @, _4 z1 O
- Serial.setDebugOutput(false);
; t! |5 N: h3 z4 z! q) ~( P* K - }, P$ \2 S& o1 z2 X9 f' w
- yield();
2 f+ l0 H( L+ i - });
* w3 H' C& B6 _/ d& f7 o3 K; {) E -
8 q* b& H- @! E' P7 s( X - digitalWrite(2,0);
+ w2 M$ x( H( }8 p" u0 f$ E5 a1 P - mainAction();, v# u2 [0 ]+ ]
- if (digitalRead(0)){1 B! w( z: Y* p r: p" O( }. F
- ESP.deepSleep(0);
0 k: Z* {# E3 q! {# B0 j8 ? - } else {
+ r/ l, S# ?& m6 V0 m1 ?& c - server.begin();6 Q K9 j, m) x: z
- }
2 K4 r; _" x; ~ }4 m# L4 k - }) m/ T5 e7 }$ z) s" C4 f
- void loop() {4 ?- F2 k) x4 T
- server.handleClient();0 n- ~$ N* |6 v/ Y
- delay(1);& x' Y( M- J9 i6 l' l
- }
) A$ d8 V- S Y( P+ }) d - String doGet(String url){# ^! [. F- c9 H
- if ((WiFiMulti.run() == WL_CONNECTED)) {# t; y2 ^# [& H, T" D& @
- HTTPClient http;
# p0 N7 l9 T4 z2 C/ M - Serial.println("[HTTP] begin...");
+ f+ J3 p. l7 \5 ?8 s - if (url.startsWith("https")) {7 x6 k% c/ K3 j& L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ b3 k+ v5 E: } ] - } else {
% H; [0 g0 o$ L, O; p - http.begin(url);
0 S3 ~* R" x* v4 F+ G - }
: @8 V/ Y$ a0 D: t - Serial.println("[HTTP] GET...");
! \1 E! J3 S& N% m$ x - int httpCode = http.GET();" {, m2 c: \ l' h7 P
- if (httpCode > 0) {/ t% {" o# X3 m3 Y
- Serial.printf("[HTTP] code: %d\n", httpCode);% I% o: A _0 z3 y( B4 M
- if (httpCode == HTTP_CODE_OK) {2 ^$ k3 A2 Z3 E# }4 N6 v
- String payload = http.getString();
* |3 Z4 a/ ?# s: R0 _# } - Serial.println(payload);" g" h D- `7 e: @& _
- Serial.print("\r\n");. p) ?7 Y+ ?# r% r P5 N
- return payload;
+ Z4 s8 d G8 G9 i6 z j - }
7 G$ C3 W; F" f d9 y( [ - } else { d# J8 @" |9 z1 ?& W
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! Y; K- T/ J0 l' ~% ] - http.errorToString(httpCode).c_str());
3 ^, i: z- K1 Z8 I7 V$ b - }
) t) B" N) G9 i5 i2 N - http.end();; V; L0 T* Z1 I7 r5 C. Y% `7 j
- return "";
# H* q& y5 A( s5 _5 r - }
8 N9 v% o7 j( n - }4 L- o5 u0 `3 t3 `1 K0 g7 v
- void mainAction() {
; b: m; P: x0 C - // 发送请求5 |; W$ P$ U4 x7 N& X
- doGet("http://google.cn");
4 U, s) _9 e- O/ y4 E7 L: o - }
9 K% U5 M, a1 T
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