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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)' L) `% w+ v: m2 ]. O$ L% d
- #include <ESP8266HTTPClient.h>1 G' L; x$ u: r0 i3 w) ?
- #include <ESP8266WiFi.h> d+ Y' v) j+ i+ q
- #include <ESP8266WiFiMulti.h>
1 ]; L( W8 @3 { - #include <ESP8266WebServer.h>) i$ R/ u; i3 S* l4 n$ z
- #include <arduino.h>% v a; i" h7 X( o1 `
- ESP8266WiFiMulti WiFiMulti;
1 z b- M0 v( d- `$ t8 [ - ESP8266WebServer server(80);- ?: Q) x6 P! R. }
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 S8 [0 R1 y8 R d: B# w! Z
- ADC_MODE(ADC_VCC);! u& e) X9 |1 A) K7 g" R
- void setup() {. y0 ]7 F9 g( v2 h& `
- Serial.begin(115200);, @9 z$ C( ^, o, R
- Serial.print("\r\n\n");- P, u' `& `6 u& T5 A
- pinMode(2,OUTPUT);2 B$ e' q* S' p, H8 b# @0 X
- // WIFI9 ~- k a! _2 Z% m3 R- o
- WiFi.mode(WIFI_STA);
6 Z- t7 X2 A! F7 Q- H' E }/ a - WiFi.hostname("Sparkle");
& Q! b [3 E$ i: \ - WiFiMulti.addAP("wifi ssid", "wifi password");! W' W- t5 K4 x6 ~2 T
- int tryNum = 15;( R! C! d8 e9 O/ M3 ~- g3 o
- Serial.print("Connect WiFi");" y H, T0 B1 f
- while (WiFiMulti.run() != WL_CONNECTED) {
p' s A1 C4 _1 I1 t# q+ G7 o - digitalWrite(2,0);
+ \9 s5 l/ K* k% L* N. N8 I. x( m4 y - delay(200);2 t% a* i) o6 g. r0 q8 Z7 w
- digitalWrite(2,1);* ]5 c: d `5 H0 d3 A
- delay(300);
; ~, G& \6 L! i9 t; R - Serial.print(".");
& n. Y* `( r2 o+ q; T+ A7 @9 q - tryNum--;2 d/ V) |9 f, V+ y3 ^8 Y$ q6 Y
- if (tryNum == 0) {
; s/ k) T3 G2 F7 g - // 1min
# d9 b" |/ P4 M) U5 e: _ - // ESP.deepSleep(60e6);
' W! C/ K* a' @- c. g, p - ESP.deepSleep(0);' A' W" H* e7 D- X$ g- I
- }
6 _$ ]6 m9 |; c/ L' C4 S - }. y/ @9 |0 B; T; @5 b
- Serial.print("\r\n");* u4 [) r! I% { w s0 i$ @6 D }
- digitalWrite(2,1);# A1 F6 r5 Q ?4 X. s, m/ k
- Serial.print("IP address : ");
' u1 ]/ Q4 ?0 Z( A6 ]& ~ - Serial.println(WiFi.localIP());
6 Q9 `) C8 s+ J - server.on("/", HTTP_GET, [](){
7 P( {0 H+ c1 U8 T - server.sendHeader("Connection", "close");
8 E2 G" `# h( y- x K0 t: Q! e- m- B: Z - server.send(200, "text/html", serverIndex);
3 }3 o6 Z# a3 s0 A, M8 c2 | - });* S9 Q# A% J! s8 _+ A; t
- server.on("/update", HTTP_POST, [](){
; x1 u2 ?/ E4 T1 K3 l5 O! a2 e7 d - server.sendHeader("Connection", "close");
9 U5 Y- ]# ?( T$ R) w" G - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 l8 d! d. B0 e' [8 i* j
- ESP.restart();2 o$ K, z, l3 K0 n
- },[](){/ }# r* e# J, N
- HTTPUpload& upload = server.upload();
0 b' q: R2 X7 T& Q) W - if(upload.status == UPLOAD_FILE_START){
+ N+ Y" l1 Z L: [4 n4 H - Serial.setDebugOutput(true);) p D5 t( ?6 _, G
- Serial.printf("Update: %s\n", upload.filename.c_str());- D1 t' y; l* t8 Q" g) H$ I6 Z3 G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% O. v2 U, c' t c/ V8 L* B - if(!Update.begin(maxSketchSpace)){
) m: Z( R+ S6 ` - Update.printError(Serial);
+ l0 { R2 B. I7 K9 f - }
' R5 K" ?2 e9 H2 ?# E - } else if(upload.status == UPLOAD_FILE_WRITE){
/ h2 \1 s6 V/ D - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# ~* i( E' ?# G, U; i/ s - Update.printError(Serial);! k9 C- j% V9 \# @8 P1 \1 n
- }2 M$ K6 k3 }% e/ d3 ?0 L
- } else if(upload.status == UPLOAD_FILE_END){
" K; @" O6 F1 q, [ - if(Update.end(true)){3 [( H% z( X' ]
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);+ w6 Q. f! J9 |" n' T: O1 H
- } else {
) H# f% h- f4 s5 |8 ^ - Update.printError(Serial);. T: N% x! ]" O7 L
- }) i1 p9 j4 y' v% X
- Serial.setDebugOutput(false);
$ y5 ^- _. g5 w# v - }
. J* d3 t1 t. h& ?* K% p8 z- g - yield();
% u9 q2 i q( Q - });8 O2 P, B! r2 G* b3 n4 |3 H
-
7 g, h- A$ P/ t - digitalWrite(2,0);$ q. `7 f# v6 F; | L @* m" k
- mainAction();
4 I( f* ~, d8 C7 v l - if (digitalRead(0)){6 U4 r! N0 E4 f' N8 ]* F
- ESP.deepSleep(0);
$ U3 v; b7 m- G3 I9 d$ E - } else {$ B6 u6 E- X, c. ^$ h
- server.begin();7 ]! y9 L$ C8 y o/ U
- }& d( _5 H* U1 L: Q/ O/ M0 i
- }
) r# H9 X! m. u* I - void loop() {! L9 i( n0 _5 e
- server.handleClient();! Q+ `1 H% T9 K2 ^$ Z. S
- delay(1);: a1 k1 w5 _" T( m; K9 {
- }( ~+ p+ d' m0 E; m, H! c3 [
- String doGet(String url){3 X# @) R7 M; O! R
- if ((WiFiMulti.run() == WL_CONNECTED)) {, u$ R+ K. N! F5 @; e7 ]$ X! k
- HTTPClient http;
$ e' c. k) t! y; ? - Serial.println("[HTTP] begin...");6 x( E* v6 s' l! B7 n/ Z* W
- if (url.startsWith("https")) {2 `( t. v8 }6 @* z4 j* L/ M9 L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");4 S5 `2 j( t% f
- } else {* r$ K% }" s6 H, _; M, p, Y; }
- http.begin(url);, t% a8 v, x9 o; u1 F5 e
- }! U3 f/ ^# |; Z% v
- Serial.println("[HTTP] GET...");& e, H0 T/ a9 \
- int httpCode = http.GET(); B5 a; G; N" A8 s/ }
- if (httpCode > 0) {
( C8 x, i6 a" c6 M9 F - Serial.printf("[HTTP] code: %d\n", httpCode);
+ E' F0 l1 a0 S, A; t$ r - if (httpCode == HTTP_CODE_OK) {
3 a. r4 C* j0 ]; P - String payload = http.getString();
* j3 A8 j% ^ J; S' L - Serial.println(payload);% k) r! R9 Y# F4 @% |
- Serial.print("\r\n");- b* b: i$ y; J4 ^; t8 S- m* p
- return payload;
2 i' ? U+ T* G/ Q - }+ ]( E3 T$ K0 t9 |9 l& f3 t q/ [
- } else {1 R1 @2 H8 k# @
- Serial.printf("[HTTP] GET... failed, error: %s\n",
1 _' L4 a* Z7 i! a% E* {6 ]! \5 ~# K - http.errorToString(httpCode).c_str());
1 S# ~: r1 C; ]1 ~ - }+ q8 O( `4 a% Y1 _/ n+ L
- http.end();
8 G* b1 d1 |6 R' D( ?5 H, K - return "";
! v! ~- P, F$ J' h/ t; \2 }5 J - }
9 s6 A3 L2 `3 }' y9 U4 r) U - }: f0 |3 I' ?2 A
- void mainAction() {/ f8 J6 K8 n! c9 A
- // 发送请求; N. o. P1 G* g8 c
- doGet("http://google.cn");
/ l+ J* o$ f$ P! e5 ` - }8 k) c0 E% y1 q) r. v
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