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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)
, d6 T/ x! N& U$ e0 c3 I- #include <ESP8266HTTPClient.h>' ^6 P% Z6 d8 Z8 M5 P5 ^$ Z
- #include <ESP8266WiFi.h>
Y8 Y5 Y* v2 \; n6 T2 j3 {, x - #include <ESP8266WiFiMulti.h>1 D! q% b; R. u! ?6 Y
- #include <ESP8266WebServer.h>* [) |: f8 o9 @. p. c
- #include <arduino.h>( R3 M% S) D4 Y" a1 n8 B$ n
- ESP8266WiFiMulti WiFiMulti;
! @. S$ ^& u+ ]7 \5 p - ESP8266WebServer server(80);9 E7 I5 G) U- {. H5 Z/ r- p
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";) l: K' K0 b0 Q& m- D
- ADC_MODE(ADC_VCC);8 j8 f+ T9 \2 L% F
- void setup() {
; H2 C, K' b; d9 ]; N! | - Serial.begin(115200);0 j$ S$ j* b* T$ V+ N
- Serial.print("\r\n\n");: s! F4 |$ T- Z
- pinMode(2,OUTPUT);
; y" a$ L$ i5 q, @* J L - // WIFI
+ C8 W: j0 ~( m4 a) x - WiFi.mode(WIFI_STA);6 {7 g% o, d# Z! x' |* X' L+ L
- WiFi.hostname("Sparkle");
/ K2 p+ x9 Z- ~% L& M$ u - WiFiMulti.addAP("wifi ssid", "wifi password");- W" S" z, ]- J$ b# s6 B4 Q
- int tryNum = 15;
5 S# E+ n& o1 M% r7 r - Serial.print("Connect WiFi");
9 h( C. M$ E) V4 o1 @ - while (WiFiMulti.run() != WL_CONNECTED) {
9 X4 w6 f. C1 a! Y' {8 x - digitalWrite(2,0);
0 U% f+ D4 F" s% L, m9 ]! r$ J* r - delay(200);
: D( o- M5 K. d( d0 O+ X$ [/ g- s: ?! z - digitalWrite(2,1);9 Y6 R- F2 }7 T/ `8 a
- delay(300);
! Z" G) D" i* @( u6 ^ - Serial.print(".");; a6 g: j" J7 s& N V4 `2 B+ {9 G
- tryNum--;2 o4 a2 E$ g1 }2 y5 J" T7 M
- if (tryNum == 0) {
- f% A" Q7 g9 V0 o1 p0 X' m - // 1min3 i9 `, c! b. A
- // ESP.deepSleep(60e6);' t/ W3 ~, M0 V2 c$ X0 J: n5 O
- ESP.deepSleep(0);; _2 x+ \& x3 y9 u: O, `. P3 G
- }
9 b: K5 q- `3 I2 o4 Q9 k& \' i - }1 L. c7 O5 \: h, p2 V) c# p
- Serial.print("\r\n");- F$ F1 r2 R' i, x( A
- digitalWrite(2,1);( N: F; M0 q9 v! o; R, Q! d
- Serial.print("IP address : ");" U5 Y' W2 R& g3 S+ S f
- Serial.println(WiFi.localIP());
0 T8 D3 A# v: v& C3 a1 O( H - server.on("/", HTTP_GET, [](){, {: U7 m- X) c. Q. B
- server.sendHeader("Connection", "close");
9 ]8 l; D) _5 \; C+ _ - server.send(200, "text/html", serverIndex);
7 c2 T# ^ x: l" t4 z4 ^ - });
9 `# ^# H a' s; r - server.on("/update", HTTP_POST, [](){. S4 m& _( x+ t7 }- y3 }* d+ z
- server.sendHeader("Connection", "close");# X, d, E+ g' ]$ O+ Y& ^: T ^0 Q
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% S e9 V) w* \- g$ X6 l
- ESP.restart();# v; q. d& Q5 _ B8 V
- },[](){
) A! W- Y( q9 v. v - HTTPUpload& upload = server.upload();
( e! F* T' S) J4 ]" u4 q1 _* d - if(upload.status == UPLOAD_FILE_START){
, ?4 A+ v0 D% X3 ^* t0 |+ O- R) i - Serial.setDebugOutput(true);
$ w7 p6 }! g2 p& a/ E - Serial.printf("Update: %s\n", upload.filename.c_str());
! y* }/ J$ v# [; V0 Q/ y" g - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 V7 T% k! M& o( t6 n5 ? - if(!Update.begin(maxSketchSpace)){
3 [/ A! V6 k8 h5 w$ D3 L3 s - Update.printError(Serial);
, Y* U- n: e' V: R2 K# ?% p! R - }5 T0 `5 G0 x; ^$ \6 K! w
- } else if(upload.status == UPLOAD_FILE_WRITE){! O, e, Q" j0 N% P/ C
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 V, @3 O( P( F/ D - Update.printError(Serial);
% @# ?* i. I% o' ^ - }
' q" |6 [7 [( }4 |; ]/ p - } else if(upload.status == UPLOAD_FILE_END){* l1 W1 N. v/ L9 e( S/ t( d
- if(Update.end(true)){
. C8 D# b+ K4 e" p7 g2 _ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 z9 E" X/ o$ q0 k, @
- } else {0 M4 D# r* q2 k- e* y# d4 ~& I+ C
- Update.printError(Serial);, s% J7 K( j$ |; B
- }- c1 X3 Z4 J% N! _) ]1 W5 Y+ ]
- Serial.setDebugOutput(false);
/ T& I- R9 V- j7 V% H' o. ~# d8 Q - }5 z' i1 r1 o) e
- yield();
' {# H' Q' X. D4 u - });
4 [, I! h2 h; E, g - & x5 ^6 [6 ~0 B0 l: `9 Y
- digitalWrite(2,0);% c0 f% G/ d B! r2 O1 R
- mainAction();+ a6 a% e! f% j% ]; e' v
- if (digitalRead(0)){! Y& I* Z) ], I1 t6 R1 J5 p# k
- ESP.deepSleep(0);
) _% a7 p, |* c. P - } else {
+ }5 F: H5 E3 K" a5 J% d, ] - server.begin();1 p" ]- M$ G1 a
- }9 G- L) w- g1 P6 e* H: j
- }
# n0 t$ y! z, \8 T - void loop() {8 e: R- }# d/ ^/ ]( q% \2 u
- server.handleClient();
- @9 i" f* `& q. w5 J - delay(1);
. i' A8 Z3 P S( L - }' d8 A, k/ h! G5 z! |$ W
- String doGet(String url){8 `1 `( W, [# n6 O1 o: I0 u A f
- if ((WiFiMulti.run() == WL_CONNECTED)) {
/ r7 w$ e% i9 _1 a0 |* L& c - HTTPClient http;3 |9 ]" R, J( u- ?
- Serial.println("[HTTP] begin...");
0 K1 a' P4 |7 k- T8 p+ B - if (url.startsWith("https")) {- x% L1 I+ o% \5 C; I, n( n
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ x: ?: m$ \: y1 R - } else {. A3 ]4 g4 x t( I$ w. j. ]9 J: P
- http.begin(url);8 m5 _) {3 R/ W, u* S2 _# x+ m
- } p$ d: @4 F% C0 _1 S3 E3 i$ u
- Serial.println("[HTTP] GET...");" {! P) x8 b3 O( P# O5 S
- int httpCode = http.GET();6 ?9 J, F; f. G/ a( p7 K
- if (httpCode > 0) {
0 q: Y% X! j2 o4 h/ a - Serial.printf("[HTTP] code: %d\n", httpCode);
" \* r! _. c! @% V% P; y6 r - if (httpCode == HTTP_CODE_OK) {
2 q; k% @3 K" d* L% m( V5 F4 e - String payload = http.getString();* l* p' A8 H6 ~& d0 F; ~
- Serial.println(payload);2 d0 Q% V' A q4 k8 m/ k
- Serial.print("\r\n");
- |% D; _ C1 u - return payload;
" N: x3 Q% x: `) L! J - }( ?9 k" J8 v" _( ?$ Z* ^
- } else {
) y# G' T; K& ]* n- M* ` - Serial.printf("[HTTP] GET... failed, error: %s\n",# x$ L% I% }# k" {; Q: Y( F
- http.errorToString(httpCode).c_str());1 _3 C8 s- u; T( q
- }
' s3 s& ~7 f4 T. N9 s J - http.end();
5 [9 i) h8 j- [* L1 C1 Y - return "";
5 w4 M3 U4 A V. [, M$ ] - }% c* x; w5 Y% Q8 `4 g
- }
/ t2 I7 ~, `5 ]+ }& x, [8 d# { - void mainAction() {
+ V7 j1 @0 i6 ~; b$ k - // 发送请求" {0 {% ` J: K( b) F9 J' U
- doGet("http://google.cn");
, s5 ~+ X& t+ ~0 V - }
* c+ U. x* R1 k6 w1 B$ a2 u0 G
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